| Hardin County Savings Band | Eldora | Citizends State Bank | Iowa Falls |
| James Nuckolls, Howard Calfee, D.D. Bramwell, Eastman W. Nuckolls, Frank Jackson, M.J. Bramwell, C.F. Long,T.L. Greenleaf, G.C. Bramwell, S.R. Dyer, W.K. Bramwell | Westbury Shoe Store | Iowa Falls | |
| Ellswoth Junior College: Iowa's Model Junion College | Iowa Falls | Owasa Co-Op. Elevator Co., D.F. Gummert, Manager | Owasa |
| Ohio National Life Insurance: The Barker Insurance Co, Paul I. Barker | Iowa Falls | Clifton's Super Market | Iowa Falls |
| Klipto Loose Leaf Company | Mason City | M.W. Ries, Jewelry and Repair of Jewelry | Alden |
| Eldora Attorneys | Eldora | Alden Co-Op. Creamery Co. and Cold Storage, Ernest Smith, Manager | Alden |
| Star Shoe Company | Eldora | L.A. Page Lumber Company, W.V. Winter, Manager | Alden |
| School Supplies & Equipment: J.S. Latta & Son | Cedar Falls | The Instructor: F.A. Owen Publishing Co. | Dansville, NY |
| Allied Mutual Casualty Co., Harold S. Evans, President, E.F. Morris, S.R. Dyer | Des Moines New Providence & Eldora | L.V. Schalk, D.V.M. | Alden |
| O.G. Waffle Book Co. | Marion | W.. Miller & Son, Home Yard for Home People | Alden |
| Playground Equipment and School Furniture | New Providence | Alden Farmers Elevator Company | Alden |
| Rexall (Drug) Store - A.E. Anderson, Pharmacist, F.H. Geesaman (Pharamicist) | Eldora | Winter's Mercantile Store | New Providence |
| The Johnson-Ramdolph Company (Books) | Champaign, IL | Hardin County Mutual Insurance Association | New Providence |
| American Institute of Business, E.O. Fenton, President | Des Moines | Central States Electric Company | Eldora |
| Omaha School Supply Company | Omaha, NE | Union - Whitten Savings Bank | Union |
| Hammond & Stephen's Company, E.C. Wissler | Boone | Farm Bureau Service Co., Mr. C.W. West, Manager | Eldora |
| Johnson Fairway Store | Steamboat Rock | Eldora Greenhouses | Eldora |
| Standard Oil Products: Raymond Karsjens | Steamboat Rock | Eldora Livestock Sales Pavilion, Knowles and Reisinger, Auctioneers | Eldora |
| Farmers Savings Bank | Steamboat Rock | Howells'Harmy Ice Cream | Eldora |
| Luiken Hardware | Steamboat Rock | Eldora Ideal Laundry | Eldora |
| Luiken Chevrolet Co. | Steamboat Rock | Bob's Sandwich Shop, Robert Smith, Manager | Eldora |
| Farmers' Co-op Elevator | Radcliffe | Glenn S. Fairchild: Tractos & Implements, urina Feeds | Eldora |
| W.B. Gillham, Drugs & Jewelry, School Suppies, Paints and Oils | Radcliff | Eldora Cold Storage and Locker Services, C.T. Emmert & L.T. Emmert | Eldora |
| Gamble Store, E.A. Nelson, Manager | Radcliffe | R.M. Haarrison, Educational Books | Eldora |
| Reed's Shop | Radcliffe | Foster Studio: Photographs | Eldora |
| A.B. Narland: Gent's Furnishings, Jewelry Repair | Radcliffe | Service Oil Company | Eldora |
| Security State Bank | Hubbard | Fed Edgar: jewelry, phonographs, music | Eldora |
| Rose's Beasuty Nook: Hair Styling | Hubbard | Woodward's: Department Store | Eldora |
| Armentrout's Store | Iowa Falls | McVeety Cleaners | Eldora |
| Piggly-Wiggly | Iowa Falls | Gamble Stores | Eldora |
| The Quality Royal Shop: Ready-To-Wear Apparel | Iowa Falls | James L. Brown Shoe Store | Eldora |
| C.W. Peterson: Hardware Store | Iowa Falls | Vilmont-Longenecker Funeral Home | Eldora |
| E.A. Laughlin and Co.: Real Estate, Loans & Insurance | Iowa Falls | Smith's Variety Store | Eldora |
| Strutz Clothes Shop | Iowa Falls | Piper's: Magazine, Candies, Fountain Service and Bus Depot | Eldora |
| Graham's Department Stores | Iowa Falls | Diamond Brothers Groceries | Eldora |
| Wood Funeral Home | Iowa Falls | Marks Drug Store | Eldora |
| Dickson's Ready to Wear | Iowa Falls | Andrle & Creps, Funeral Directing and Home Furnishing | Eldora |
| Ben Franklin Store: Variety Store | Iowa Falls | Lovell-Denniston Company, Lumber and Coal | Eldora |
| Newberry's 5c - 10c - 25c | Iowa Falls | Modern Fashion Shop | Eldora |
| Kloves for Cloths | Iowa Falls | Way's Chevrolet | Eldora |
| Johnston's Motor Company: Ford & Mercury | Iowa Falls | Graham's Department Stores, L.L. Scott, Manager | Eldora |
| Iowa Falls Laundy | Iowa Falls | Carstens Bros. Hardware | Ackley |
| Goettel & Son: dry goods, millinery,ladies dresses | Ackley | Ackley State Bank | Ackley |
| Chas P. Roth: Rexall Druggist | Ackley | A.D. Weaver: School Supplies | Ackley |
| Ralston-Purina Company: Bean Plant, Don Walker Manager | Unknown |