Nis Nielsen (1934-1922) married Herlig Jespersen Lund (1837-1915) on 15 Mar 1861 in Skrydstrup, Denmark. This couple died in Plymouth County, IA.

Two of their daughters married Kloster brothers.

Anna Sophia Nielsen married Thorvald (Tovel) Kloster.

Christine Nielsen married Kristian Peter (Chris) Kloster.