| Possible Birthdate | 6 Nov 1868 | According to at least one source, his birthdate was 6 Nov 1868 birthplace was Tyumaarum, Netherlands. |
| Birth | Nov 1869 | Rink R. Siemonsma was born in Nov 1869 in Holland. |
| Marriage | about 1897 | He and Minnie Kerkvliet were married about 1897. |
| 1900 Census | 13 Jun 1900 | Rink R. Siemonsma appeared as head of household in the 1900 Federal Census of Rock Township, Sioux County, Iowa, as Rink Siemonsma. Living with him was his wife, Minnie, and their children, Stella and Mary. He is a married white male, age 30. Born November 1869. Married 3 years. He was born in Holland. His mother and father were born in Holland. He immigrated to the U.S. in 1882 and has been in the U.S. 18 years. He was naturalized. His occupation is farmer. He was unemployed 0 months. He rents his home. It is a farm, number 16 on the farm schedule. |
| 1910 Census | 1910 | Rink R. Siemonsma appeared as head of household in the 1910 Federal Census of Rock Township, Sioux County, Iowa, as Rink Germanson. |
| 1920 Census | 14 Jan 1920 | Rink R. Siemonsma appeared as head of household in the 1920 Federal Census of Mapleton, Minnehaha County, South Dakota, as Rink R. Siemonsoma. Living with him was his wife, Minnie, and their children, Stella, Mary, Albert, George, Henry, Elmer, Frank, Gerard, Joseph and Theresa. He is a married white male, age 57. He owns his home and it is mortgaged. He immigrated to the U.S. in 1881 and was naturalized in 1881. He can read and write. He was born in Holland and his mother tongue is Dutch. Hie mother and father were born in Holland and their mother tongue is Dutch. He can speak English. His occupation is farmer on a general farm. The farm is number 36 on the farm schedule. |
| 1930 Census | 1930 | Rink R. Siemonsma appeared as head of household in the 1930 Federal Census of Mapleton, Minnehaha County, South Dakota, as Berk Sumasma. Living with him was his wife, Minnie. |
Rink R. Siemonsma