| Testator or Main Party | Will Type | Case Number |
| Maack, Friedrick | Prowill | 4411 |
| Maack, Juergen | Prowill | 8822 |
| Maack, Sophia | Codewill | 18516 |
| Maass, Friedericke | Prowill | 7769 |
| Maassen, Henry | Prowill | 12823 |
| Mabry, John T. | Prowill | 5729 |
| Mackay, William R. | Prowill | 3827 |
| Macklot, Louis A. | Prowill | 757 |
| Macumber, William | Codewill | 23889 |
| Madar, Barbara (see Robb, Barbara) | Prowill | 13001 |
| Madden, James G. | Prowill | 13006 |
| Madden, John | Prowill | 2230 |
| Madden, Rebecca L. | Prowill | 5224 |
| Mader, Dora Barbara | Prowill | 13966 |
| Madigan, Thomas | Prowill | 6254 |
| Maehr, Frank | Codewill | 22418 |
| Magbier, Doris C. | Prowill | 3083 |
| Magnus, Catharina Dorothea & Emil | Prowill | 5502 |
| Magnus, Emil | Prowill | 7000 |
| Maguire, John | Prowill | 3926 |
| Maguire, Margaret | Prowill | 9225 |
| Maher, William | Codewill | 15712 |
| Mahlstedt, Reimer | Prowill | 10810 |
| Mahoney, Julia | Prowill | 11997 |
| Mainhardt, Manfred | Prowill | 9054 |
| Maisack, Caroline | Prowill | 5318 |
| Malchau, Ernst | Codewill | 11914 |
| Mallicoat, Sevilla J. | Codewill | 17345 |
| Mallory, Alden T. | Prowill | 2090 |
| Malloy, John M. | Codewill | 22515 |
| Malone, Bridget | Prowill | 9453 |
| Malone, Effie I. | Codewill | 22986 |
| Malone, Michael | Codewill | 7337 |
| Maloney, Jacob | Prowill | 9370 |
| Maloney, Mary | Prowill | 9489 |
| Malueg, Wilhelmine | Codewill | 20953 |
| Mandel, Aquelen | Prowill | 12601 |
| Mandeville, M. H. | Prowill | 4434 |
| Mangel, Francis | Prowill | 2084 |
| Manker, James Liggett | Prowill | 6809 |
| Manker, Jennie G. | Prowill | 9606 |
| Mann, Elizabeth | Prowill | 704 |
| Mann, William J. | Prowill | 7644 |
| Manwaring, Harry & Bess | Codewill | 14897 |
| Mapes, Mary R. | Prowill | 9376 |
| Marinan, Cornelius | Prowill | 10488 |
| Marinan, James | Prowill | 3455 |
| Marinan, Mary | Prowill | 8436 |
| Marinan, Patrick | Prowill | 9521 |
| Marks, Helen Augusta | Prowill | 6294 |
| Marks, Morton L. | Prowill | 7234 |
| Marquette, Frances | Prowill | 9882 |
| Marrinan, Michael | Prowill | 7587 |
| Marsen, Heinrich Theodor (Anna M.) | Prowill | 7776 |
| Marshal, George W. | Prowill | 8802 |
| Marshall, Joseph C. | Prowill | 11241 |
| Marshall, Joseph Christopher | Codewill | 7172 |
| Marshall, Margeret | Prowill | 2364 |
| Marshall, Mary | Prowill | 6821 |
| Marshall, Pernecia | Prowill | 12120 |
| Marshall, William | Prowill | 1504 |
| Marten, Carl | Prowill | 1271 |
| Martens, Christine | Prowill | 9084 |
| Martens, Ernst | Prowill | 9173 |
| Martens, Fritz | Prowill | 11271 |
| Martens, Henry | Prowill | 13521 |
| Martens, John | Prowill | 6396 |
| Martens, Margaretha | Prowill | 9436 |
| Martens, Martha E. | Codewill | 22740 |
| Martens, Minnie A. | Prowill | 9460 |
| Martens, Wilhelmina | Prowill | 12939 |
| Marti, Fridolin | Prowill | 2421 |
| Marti, Rosina | Prowill | 6537 |
| Martin, Adah M. | Prowill | 10633 |
| Martin, C. D. | Prowill | 12308 |
| Martin, Catherine M. | Codewill | 22505 |
| Martin, Ellen | Prowill | 13277 |
| Martin, George | Prowill | 6249 |
| Martin, Gerhardt W. | Codewill | 16913 |
| Martin, Louis | Codewill | 23760 |
| Martin, Nickolas (Margaret) | Prowill | 1765 |
| Martin, Thomas W. | Prowill | 8320 |
| Martin, Wellington H. | Prowill | 12932 |
| Martini, John | Prowill | 12292 |
| Martinsen, Hinrich | Prowill | 4103 |
| Martinsen, Sarah Elsabea | Prowill | 896 |
| Martzahn, August F. | Prowill | 9601 |
| Martzahn, Frank | Prowill | 10932 |
| Martzahn, Minnie | Codewill | 16407 |
| Mason, Benjamin Bryan & Emilia | Codewill | 22191 |
| Mason, Edna H. | Prowill | 13656 |
| Mason, Jas. F. | Codewill | 9256 |
| Mason, John L. | Prowill | 10782 |
| Mason, John T. | Prowill | 2747 |
| Mason, Louise D. | Codewill | 21338 |
| Mason, Sarah | Prowill | 9759 |
| Mass, Marie C. | Codewill | left blank |
| Massmann, Johann | Prowill | 2180 |
| Mast, Amy Louise | Prowill | 11575 |
| Mast, Augustus F. | Prowill | 6388 |
| Mast, Ehrhardt | Prowill | 756 |
| Mathews, Lavina C. | Prowill | 10487 |
| Mathews, Margaret D. | Prowill | 6978 |
| Matthes, George M. | Prowill | 4014 |
| Matthews, Christopher | Prowill | 5311 |
| Matthews, Harriet | Prowill | 12922 |
| Matthews, Tom | Prowill | 13625 |
| Matthey, Carl (Dr.) | Codewill | 8403 |
| Mattson, Anthony J. | Prowill | 3121 |
| Mattson, Lucy B. | Prowill | 3122 |
| Mauget, Francis J. | Prowill | 11154 |
| Maurer, Hannah | Prowill | 12255 |
| Maus, Mary Elizabeth | Prowill | 7732 |
| Maus, Nicolas | Prowill | 7509 |
| Maw, Thomas B. | Prowill | 7649 |
| Maxfeldt, Gretchen | Prowill | 820 |
| May, John | Prowill | 992 |
| McAdam, Edward R | Prowill | 10241 |
| McArthur, John | Prowill | 1126 |
| McBride, Ellen | Prowill | 12988 |
| McBride, Jane | Prowill | 1820 |
| McBride, Margaret B. | Prowill | 10927 |
| McCabe, Patrick | Prowill | 8674 |
| McCagg, Mary A. | Prowill | 12091 |
| McCahen, Kate | Prowill | 10214 |
| McCall, Aruthur | Codewill | 19114 |
| McCandless, Archibald W. | Prowill | 11646 |
| McCandless, Charles R. | Prowill | 19114 |
| McCandless, Jennie M. | Prowill | 9149 |
| McCarn, Maria L. (Wm.) | Prowill | 3549 |
| McCarthy, Henry F. | Codewill | 4128 |
| McCarthy, Mary I. | Prowill | 13276 |
| McCash, James K | Prowill | 7385 |
| McCausland, J. C. | Prowill | 2522 |
| McCausland, T. W. | Prowill | 7366 |
| McClain, Minnier Stieger | Codewill | 15971 |
| McCleary, Lindley A. | Codewill | 24465 |
| McClelland, Anna M. | Prowill | 8178 |
| McClelland, Annie | Prowill | 6606 |
| McClelland, Juliet S. | Prowill | 8827 |
| McClelland, Thomas | Prowill | 2949 |
| McClelland, Wilson | Prowill | 8542 |
| McCluskey, Annie | Prowill | 9773 |
| McCollister, John Dehart | Prowill | 13208 |
| McConnell, Alexander | Prowill | 1908 |
| McConnell, James | Prowill | 3727 |
| McConnell, John S. | Prowill | 7190 |
| McConnell, Mary Jane | Prowill | 11577 |
| McConnell, Thomas | Codewill | 2949 |
| McConnell, William | Prowill | 9385 |
| McCool, Robert | Prowill | 2483 |
| McCormack, Andrew Joseph | Prowill | 13903 |
| McCrellias, Riter R. | Prowill | 11638 |
| McCrod, H. D. | Codewill | 12411 |
| McCroskey, Frances A. (see Dora) | Codewill | 18570 |
| McCrossen, Rosanna | Prowill | 3426 |
| McCulloch, Maria R. | Prowill | 748 |
| McCullock, J. L. | Prowill | 4305 |
| McCullough, Eliza H. | Prowill | 2700 |
| McCullough, Francis | Prowill | 4152 |
| McCullough, Julia M. | Prowill | 6705 |
| McCullough, Mondel E. | Prowill | 1170 |
| McCullough, William J. | Codewill | 16198 |
| McDermott, Margaret | Prowill | 11978 |
| McDevitt, Bernard | Codewill | 20371 |
| McDevitt, Charles | Prowill | 3775 |
| McDonnell, John Bernard | Prowill | 12773 |
| McDonough, Jas. L. | Prowill | 10026 |
| McDonugh, James P. | Prowill | 6033 |
| McElmurray, Eliza | Prowill | 9132 |
| McFarland, Daniel | Codewill | 15513 |
| McFarland, Noah | Prowill | 8486 |
| McFate, Ella | Prowill | 11104 |
| McFate, James | Codewill | 18850 |
| McFate, James Sr. | Prowill | 9221 |
| McGarvey, Anthony | Prowill | 2971 |
| McGarvey, James M. | Prowill | 9369 |
| McGarvey, W. T. | Prowill | 9508 |
| McGavran, Eleanor | Prowill | 710 |
| McGee, Andrew H. | Codewill | 10813 |
| McGee, Charles P. | Prowill | 5511 |
| McGee, Denis | Prowill | 13414 |
| McGee, Emily | Prowill | 3215 |
| McGee, Henry | Prowill | 5658 |
| McGee, James | Prowill | 12607 |
| McGee, Louise Malvina | Prowill | 7342 |
| McGee, Martha E. | Prowill | 6877 |
| McGee, Thomas | Codewill | 16440 |
| McGinley, Con | Prowill | 5118 |
| McGinnis, William | Prowill | 2349 |
| McGinnis, William H. | Prowill | 11567 |
| McGivern, Felix H. | Prowill | 11926 |
| McGivern, Margaret | Codewill | 16440 |
| McGowan, Thomas H. | Prowill | 12540 |
| McGrath, Mark | Prowill | 9894 |
| McGregor, Alexander W. | Prowill | 696 |
| McGuinness, Frieda M. | Codewill | 18577 |
| McGuire, Bridget | Prowill | 1640 |
| McGuire, James | Prowill | 716 |
| McGuire, Mary | Prowill | 7696 |
| McGuire, Patrick | Prowill | 6934 |
| McGuire, Sarah A. | Prowill | 722 |
| McGuirk, Ambrose P. | Codewill | 10320 |
| McHarg, Harriet N. | Prowill | 2782 |
| McInnis, Margaret L. | Prowill | 10739 |
| McIntosh, Elizabeth (Dow) | Prowill | 2906 |
| McIntosh, Robert | Prowill | 2261 |
| McIntyre, John S. | Prowill | 3282 |
| McKay, Harry E. | Prowill | 13821 |
| McKeague, John | Prowill | 2902 |
| McKeague, Margaret Ann | Prowill | 9537 |
| McKee, Charles | Prowill | 5247 |
| McKenney, Fred | Codewill | 23215 |
| McKinney, Patrick | Prowill | 3367 |
| McKinstry, Rockwell | Prowill | 684 |
| McKissen, Robert | Prowill | 691 |
| McKlot, John N. (Miclot?) | Prowill | 652 |
| McLaughlin, Helen | Prowill | 680 |
| McLaughlin, Michael H. | Prowill | 10018 |
| McLaughlin, Thomas | Prowill | 11109 |
| McLaughlin, William | Prowill | 246 |
| McLean, John | Prowill | 3111 |
| McLoraine, Daniel | Prowill | 10726 |
| McLoughlin, Margaret E. | Prowill | 13214 |
| McMann, Arthur G. | Prowill | 10602 |
| McManus, Bridget | Prowill | 5666 |
| McManus, Frances J. | Prowill | 10365 |
| McManus, James | Codewill | 9973 |
| McManus, John | Prowill | 11257 |
| McManus, Parker W. | Prowill | 11010 |
| McManus, William | Prowill | 2551 |
| McMenomy, John | Prowill | 2052 |
| McMullen, John | Prowill | 2100 |
| McNamer, Joseph William | Prowill | 13237 |
| McNee, Daniel | Codewill | left blank |
| McNee, Daniel | Prowill | 2941 |
| McPartland, Bertha (& John) | Prowill | 12446 |
| McPartland, Frank | Codewill | 19339 |
| Mead, Enoch | Prowill | 3445 |
| Meadley, Elizabeth A. | Prowill | 7639 |
| Means, Elizabeth J. | Prowill | 5104 |
| Meeck, Christian | Prowill | 3113 |
| Meehan, Mary | Prowill | 4114 |
| Meek, Anna A. | Codewill | 22611 |
| Meek, Ellen | Prowill | 9340 |
| Meetz, Henry | Prowill | 11075 |
| Meetz, Jochim Friedrich | Prowill | 3762 |
| Meetz, Jochim Friedrich | Codewill | 3762 |
| Meetz, Mary | Prowill | 124496 |
| Mehan, Winifred | Prowill | 3866 |
| Meiburg, Minnie | Prowill | 11547 |
| Meiburg, Reimer | Prowill | 12917 |
| Meichsner, Franz | Prowill | 14065 |
| Meier, Carl | Codewill | 23299 |
| Meier, Carl (Henrietta) | Prowill | 6455 |
| Meier, Charles | Prowill | 7529 |
| Meier, Doris | Prowill | 3264 |
| Meier, Frank | Prowill | 5278 |
| Meier, Fritz | Prowill | 11944 |
| Meier, Henrietta | Prowill | 10388 |
| Meier, Hermann | Prowill | 6455 |
| Meier, Jacob | Prowill | 13975 |
| Meier, Johan Heinrich | Prowill | 2628 |
| Meier, Laura F. | Prowill | 9007 |
| Meier, Margaretha | Prowill | 9026 |
| Meier, Wilhelm | Prowill | 11968 |
| Meinert, Cathrina | Prowill | 11033 |
| Meinert, Fritz S. | Prowill | 6598 |
| Meinert, H. F. | Prowill | 10857 |
| Meinert, Johann Martin | Prowill | 5653 |
| Meinert, Peter F. | Prowill | 11754 |
| Meinhardt, Henry B. | Prowill | 12263 |
| Meinhardt, Philipp | Prowill | 7599 |
| Meinke, Margaretha | Prowill | 10691 |
| Meinke, Wilhelm | Prowill | 6754 |
| Meir, Carl | Prowill | 13734 |
| Meislahn, Johannes | Prowill | 3441 |
| Meisner, A. F. | Prowill | 8277 |
| Meisner, Amalia Maria Catharina | Prowill | 14092 |
| Meisner, Johannes Heinrich | Prowill | 2451 |
| Meisner, Ottilie P. J. J. | Prowill | 5479 |
| Melchert, Christiane | Prowill | 5274 |
| Melchert, John | Prowill | 5503 |
| Meltesen, Peter | Prowill | 9226 |
| Melville, Martha Earhart | Prowill | 11071 |
| Melville, Susan B. | Prowill | 2299 |
| Menaugh, Daniel F. | Prowill | 12101 |
| Mende, Emiel M. | Prowill | 6296 |
| Mengel, Eva | Prowill | 12427 |
| Mengel, Fritz | Prowill | 10678 |
| Mennen, Henry E. | Prowill | 7628 |
| Mennen, Sophia | Prowill | 7349 |
| Mercer, Stewart Monte | Codewill | 22852 |
| Meredith, Henry | Codewill | 9373 |
| Merow, A. C. | Codewill | 23619 |
| Merow, Claudia | Codewill | 23674 |
| Merrill, Norman | Prowill | 6413 |
| Merten, F. M. | Codewill | 22725 |
| Merz, Ferdinand | Prowill | 3811 |
| Mess, Emma | Prowill | 6463 |
| Mess, Herman | Prowill | 9099 |
| Messer, B. J. | Prowill | 13284 |
| Metteer, Charles | Prowill | 737 |
| Metzger, Frederick A. | Prowill | 12504 |
| Metzger, John | Prowill | 3711 |
| Metzger, Maria | Prowill | 7556 |
| Meves, Augusta | Prowill | 9889 |
| Meves, Herman D. | Prowill | 6446 |
| Mewes, John H. | Prowill | 5181 |
| Meyer, Anna Rebecca | Prowill | 12309 |
| Meyer, August | Prowill | 11103 |
| Meyer, Charles F. | Prowill | 2540 |
| Meyer, Christopher | Prowill | 5037 |
| Meyer, Claus H. | Prowill | 11688 |
| Meyer, Doris | Prowill | 6064 |
| Meyer, Elise | Prowill | 397 |
| Meyer, Elise | Prowill | 8482 |
| Meyer, Emilie A. | Prowill | 11000 |
| Meyer, Ernest | Prowill | 7099 |
| Meyer, F. P. (Mrs.) (Giese) | Prowill | 10823 |
| Meyer, Garrie | Prowill | 13068 |
| Meyer, Hans | Prowill | 4291 |
| Meyer, Hans C. | Prowill | 10468 |
| Meyer, Henriette M. J. | Prowill | 7863 |
| Meyer, Henry | Prowill | 11263 |
| Meyer, Henry | Prowill | 13871 |
| Meyer, Henry W. Sr. | Prowill | 12711 |
| Meyer, Jochim H. C. | Prowill | 2960 |
| Meyer, Johann | Prowill | 3864 |
| Meyer, John Ferdinand | Prowill | 12466 |
| Meyer, John L. | Prowill | 11418 |
| Meyer, Lida M. | Prowill | 10574 |
| Meyer, Louisa | Prowill | 6988 |
| Meyer, Margaretha | Codewill | 13503 |
| Meyer, Mary C. | Prowill | 11433 |
| Meyer, Peter | Prowill | 11538 |
| Meyer, Peter G. | Prowill | 12119 |
| Meyer, Sophia C. | Prowill | 7273 |
| Meyer, Theodore | Prowill | 11259 |
| Meyer, Thomas H. | Prowill | 5799 |
| Meyer, William Frank | Prowill | 13827 |
| Meyhaus, Herman Bernhard | Prowill | 6921 |
| Michaelis, Carl | Prowill | 1263 |
| Micheel, Heinrich | Prowill | 12910 |
| Michel, Margaretha Stoeber | Prowill | 8307 |
| Michl, Joseph V., Jr. | Codewill | 19573 |
| Micklewright, Mary E. | Prowill | 10264 |
| Micklewright, Stella | Prowill | 8974 |
| Micklot, John N. | Prowill | 652 |
| Miclot, John L. | Prowill | 10333 |
| Miclot, Joseph L. | Prowill | 11559 |
| Miclot, Margaret R. | Prowill | 8604 |
| Miclot, Mary E. | Prowill | 8924 |
| Middleton, Lida D. | Prowill | 10463 |
| Middleton, Sue Y. | Prowill | 8243 |
| Middleton, William D. | Prowill | 5243 |
| Miekley, Albert | Prowill | 10783 |
| Mielitz, Maria | Prowill | 5600 |
| Mielke, Christine M. | Prowill | 9571 |
| Miller, Emma (Muller) | Prowill | 10806 |
| Miley, Mary | Prowill | 3659 |
| Millar, Samuel R. | Prowill | 718 |
| Miller, Agnes B. | Codewill | 8414 |
| Miller, Alonzo A. | Codewill | 15490 |
| Miller, Bridget | Prowill | 754 |
| Miller, C. S. | Prowill | 12298 |
| Miller, Claus | Prowill | 7202 |
| Miller, Edward E. | Prowill | 6973 |
| Miller, Elizabeth | Codewill | 5551 |
| Miller, Frances Angeline | Prowill | 11852 |
| Miller, Frank H. | Prowill | 9106 |
| Miller, Frederick W. | Prowill | 4234 |
| Miller, Frederick W. & Fredericka Maria | Codewill | 23510 |
| Miller, Georgetta Davis | Prowill | 9080 |
| Miller, Henry | Codewill | 12993 |
| Miller, Henry | Prowill | 774 |
| Miller, Jacob | Prowill | 4233 |
| Miller, James | Prowill | 2341 |
| Miller, John F. | Codewill | 12588 |
| Miller, John F. | Prowill | 5290 |
| Miller, Joseph A. | Prowill | 10585 |
| Miller, Joseph P. | Codewill | 20565 |
| Miller, Josephine | Prowill | 13130 |
| Miller, Levi | Prowill | 2991 |
| Miller, Marion | Prowill | 12502 |
| Miller, Martin C. | Prowill | 8419 |
| Miller, Mary | Prowill | 9030 |
| Miller, Mary Jane | Prowill | 9213 |
| Miller, Minnie | Prowill | 7629 |
| Miller, Richard | Prowill | 7533 |
| Miller, Robert Thomas | Prowill | 13410 |
| Miller, Severin | Prowill | 7524 |
| Miller, William | Prowill | 6492 |
| Miller, William A. | Prowill | 9462 |
| Milligan, George | Codewill | 21106 |
| Mills, Alva J. | Prowill | 8844 |
| Milsted, Annie L. | Prowill | 13124 |
| Minehan, Lizzie | Prowill | 12807 |
| Miner, Alfred M. | Prowill | 2248 |
| Miner, Jennie True | Prowill | 1980 |
| Miner, Mary A. | Prowill | 3242 |
| Minnick, Margaret | Prowill | 12207 |
| Mirfield, Norman | Prowill | 13422 |
| Mitchell, Genevieve M. | Prowill | 9168 |
| Mitchell, Matilda S. | Prowill | 9090 |
| Mitchell, Robert C. | Prowill | 2381 |
| Mitchell, Rosa A. | Prowill | 6420 |
| Mittelbuscher, Laura | Prowill | 13259 |
| Mittelbuscher, R. | Prowill | 10714 |
| Mochow, Clara S. | Prowill | 11600 |
| Mock, F. Wm. | Codewill | 11506 |
| Moehlmann, Hermann | Prowill | 7444 |
| Moellenbeck, Anton | Prowill | 8825 |
| Moellenbeck, J. T. | Prowill | 6548 |
| Moellenbeck, Margareth A. | Prowill | 13157 |
| Moeller, Adelaide | Codewill | 13549 |
| Moeller, Bernhardt | Codewill | 12516 |
| Moeller, Carl | Prowill | 5175 |
| Moeller, Carl Henry | Prowill | 6337 |
| Moeller, Charles J. | Codewill | 19874 |
| Moeller, Claus | Prowill | 9767 |
| Moeller, Claus H. | Prowill | 12770 |
| Moeller, Detlef | Prowill | 2752 |
| Moeller, Dora | Prowill | 5577 |
| Moeller, Emma | Prowill | 13721 |
| Moeller, Emma G. | Codewill | 22549 |
| Moeller, Friedrich | Prowill | 1530 |
| Moeller, George J. | Prowill | 8871 |
| Moeller, H. M. | Prowill | 11510 |
| Moeller, Hans | Prowill | 3175 |
| Moeller, Hans Casper Christopher | Prowill | 1561 |
| Moeller, Harvey F. | Prowill | 8341 |
| Moeller, Henry C. | Prowill | 9442 |
| Moeller, Jasper Carsten | Prowill | 12002 |
| Moeller, Johann August | Prowill | 5979 |
| Moeller, John C. F. | Prowill | 6651 |
| Moeller, Louis | Prowill | 6616 |
| Moeller, Mary | Prowill | 11498 |
| Moeller, Minnie | Prowill | 11352 |
| Moeller, Otto A. | Codewill | 22220 |
| Moeller, Peter F. | Prowill | 4101 |
| Moeller, Sophia Margaretha | Prowill | 4259 |
| Moeller, William | Prowill | 6425 |
| Moetzei, N. (Dr.) | Prowill | 3241 |
| Moffatt, Francis I. | Prowill | 8520 |
| Moffatt, Robert T. | Codewill | 21521 |
| Mohr, Anna Catherina | Prowill | 5644 |
| Mohr, Hans | Prowill | 4443 |
| Mohr, Henry | Prowill | 8939 |
| Mohr, John | Prowill | 12903 |
| Mohr, Peter | Prowill | 4101 |
| Mohr, William P. | Prowill | 13173 |
| Molander, Caroline | Prowill | 13394 |
| Moldenscheidt, Asmus | Prowill | 9579 |
| Moley, Margaret | Prowill | 3716 |
| Molik, John | Prowill | 6780 |
| Molitor, Anthony | Prowill | 13785 |
| Molitor, Honora | Prowill | 13870 |
| Molitor, Mary E. & Anthony | Prowill | 7208 |
| Moll, Alvin | Prowill | 12733 |
| Moller, Gotthart | Prowill | 5304 |
| Moller, Marx Friederick | Prowill | 5738 |
| Molter, Margaretha | Prowill | 12321 |
| Molyneaux, Henry | Codewill | 8732 |
| Molyneaux, John | Prowill | 3093 |
| Molyneaux, Michael M. | Prowill | 3026 |
| Montgomery, James | Prowill | 12857 |
| Montgomery, Jane | Prowill | 2458 |
| Montgomery, William | Prowill | 3726 |
| Moon, Mary Ann (See Moore, Mary Ann) | Prowill | 924 |
| Mooney, Honore I | Prowill | 13476 |
| Moore, Benjamin F. | Prowill | 2925 |
| Moore, Benjamine | Prowill | 6055 |
| Moore, Charles A. | Prowill | 7411 |
| Moore, David H. | Prowill | 760 |
| Moore, E. C. | Prowill | 12830 |
| Moore, Frank D. | Prowill | 13012 |
| Moore, H. M. | Prowill | 8422 |
| Moore, James | Prowill | 7414 |
| Moore, Joseph | Prowill | 3046 |
| Moore, Josephine | Prowill | 12768 |
| Moore, Levi | Prowill | 4127 |
| Moore, Lewis | Prowill | 1469 |
| Moore, Mary Ann (Moon) | Prowill | 924 |
| Moore, Louisa | Prowill | 2759 |
| Moore, Sophie | Prowill | 11930 |
| Moravek, Vencl | Prowill | 7888 |
| Morgan, Clara | Prowill | 12553 |
| Morgan, Elizabeth | Prowill | 6040 |
| Morgan, J. B. | Prowill | 10851 |
| Morgan, Phillip | Prowill | 6706 |
| Morgan, Pliney W. | Prowill | 2045 |
| Moritz, Abraham | Prowill | 3090 |
| Moritz, Ignatz | Prowill | 3351 |
| Moritz, Marie | Prowill | 11733 |
| Morley, Thomas H. | Prowill | 764 |
| Morrill, James | Prowill | 3920 |
| Morrison, John D. | Prowill | 3114 |
| Morrison, Theodore N. | Prowill | 13851 |
| Morsman, John B. | Codewill | 23502 |
| Moss, Mary Elizabeht | Prowill | 11483 |
| Mossman, Albert | Prowill | 8528 |
| Mott, Abbie L. | Prowill | 12095 |
| Mousley, James E. | Prowill | 14081 |
| Mrazek, Antonette | Codewill | 21533 |
| Mualler, Mathilda | Prowill | 6732 |
| Mueller, Amelia | Prowill | 9209 |
| Mueller, Anton Heinrich | Codewill | 7806 |
| Mueller, Auguste S. K. | Prowill | 11932 |
| Mueller, Christian | Prowill | 5122 |
| Mueller, Mary M. | Codewill | 19007 |
| Muemann, Julius | Prowill | 7898 |
| Muenter, Claus | Prowill | 7447 |
| Muhl, Gesche | Prowill | 10369 |
| Muhs, Adolph | Prowill | 13876 |
| Muhs, Catharine | Prowill | 9353 |
| Muhs, George | Prowill | 14081 |
| Muhs, H. F. | Prowill | 9858 |
| Muhs, Hinrich | Prowill | 4121 |
| Muhs, Louis | Prowill | 10507 |
| Muhs, Peter | Prowill | 6689 |
| Muhs, Wm. | Prowill | 7691 |
| Mulcrone, Thomas | Prowill | 9164 |
| Mulford, William E. | Prowill | 11375 |
| Mulholland, Ellen Rose | Prowill | 11264 |
| Mulick, Michael | Prowill | 5523 |
| Mullane, Timothy | Prowill | 10242 |
| Muller, August | Prowill | 6614 |
| Muller, Carl | Prowill | 5632 |
| Muller, Emma (see Miller, Emma) | Prowill | 10806 |
| Muller, Gottlieb Ferdinand | Prowill | 6089 |
| Muller, Katharina | Prowill | 6585 |
| Muller, Wilhelm | Codewill | 20905 |
| Mulligan, Daniel | Prowill | 12221 |
| Mullins, John | Prowill | 736 |
| Mulvihill, Margaret | Prowill | 11825 |
| Mumm, Anna K. | Prowill | 10266 |
| Mundt, Cacelie | Prowill | 13893 |
| Mundt, Claus | Prowill | 3275 |
| Mundt, Hans | Prowill | 8149 |
| Mundt, Hans | Prowill | 8744 |
| Munnecke, John Peter | Prowill | 12627 |
| Munro, Isabella | Prowill | 9379 |
| Munson, John Harley | Prowill | 1990 |
| Munson, Russell C. | Prowill | 10594 |
| Murdock, Robert | Prowill | 3234 |
| Murer, Sabina | Prowill | 7750 |
| Murney, Rose Ann | Prowill | 5088 |
| Murphy, J. H. | Prowill | 3617 |
| Murphy, James & Mary | Prowill | 8384 |
| Murphy, John D. | Prowill | 7333 |
| Murphy, Mary | Prowill | 5185 |
| Murphy, Michael | Prowill | 2415 |
| Murphy, Michael T. | Prowill | 4456 |
| Murphy, Patrick | Codewill | 10864 |
| Murphy, Patrick | Prowill | 1274 |
| Murray, Charles | Prowill | 12851 |
| Murray, Christina | Codewill | 15345 |
| Murray, George | Prowill | 2567 |
| Murray, George | Prowill | 9531 |
| Murray, Hiram P. | Prowill | 2549 |
| Murray, James | Prowill | 2698 |
| Murray, James C. | Prowill | 10079 |
| Murray, Jessie | Codewill | 12914 |
| Murray, Johanna | Prowill | 7793 |
| Murray, Mary | Codewill | 12915 |
| Murray, O. G. (Owen) | Prowill | 12533 |
| Murray, Susie K. | Prowill | 13758 |
| Murray, Wm. M. | Prowill | 1841 |
| Murrison, Christine | Codewill | 14842 |
| Murrison, Dorcas | Prowill | 10126 |
| Murrison, Nancy C. | Prowill | 9549 |
| Murrison, William | Prowill | 13999 |
| Murry, John | Prowill | 8516 |
| Musfeldt, Claus | Prowill | 2398 |
| Muth, Agnes Francisca (aka Ackermann) | Prowill | 6994 |
| Muttersbach, Carl | Prowill | 10276 |
| Myatt, Paul F. | Codewill | 23331 |
| Myers, Adaline | Prowill | 8284 |
| Myers, Rezin D. | Prowill | 4271 |
PROBATE and WILLS 1835-1928