| Birth | 21 Aug 1910 | Sylvester Kobberman was born on 21 Aug 1910 in Remsen, Plymouth County, Iowa. |
| Possible Birthdate | 27 Aug 1910 | According to at least one source, his birthdate was 27 Aug 1910 birthplace was Remsen, Plymouth County, Iowa. |
1920 Census
(with Parents)
| 6 Jan 1920 | Sylvester appeared in the 1920 Federal Census of Remsen, Plymouth County, Iowa, as Sylvester Kobberman, in the household of his parents, Margaret and Frank Kobberman. He is a single white male, age 9 Son of head of household. He attended school since September 1, 1919. He can read and write. He was born in Iowa. His mother and father were born in Iowa. He can speak English. He has no occupation. |
Cen_Head
(Witness)
| 1 Jan 1925 | The an unknown or excluded person listed Sylvester Kobberman in addition to Margaret Ruba and Theodore J. Kobberman in the household of Frank Kobberman, in Marion, Plymouth County, Iowa. |
1930 Census
(with Parents)
| 16 May 1930 | Sylvester appeared in the 1930 Federal Census of Marion, Plymouth County, Iowa,in the household of his parents, Margaret and Frank Kobberman. |
| Marriage | 24 Apr 1935 | Sylvester Kobberman and Marina Bunkers, daughter of Joseph Francis Bunkers and Mary Elizabeth Bohlke, were married on 24 Apr 1935 in Remsen, Plymouth County, Iowa. |
| 1940 Census | 19 Apr 1940 | Sylvester appeared in the 1940 Federal Census of Remsen, Plymouth County, Iowa. He is a Sveyster Kobberman. |
| Death | 25 Apr 1988 | Sylvester Kobberman died on 25 Apr 1988 in Remsen, Plymouth County, Iowa, at age 77. |
| Burial | 27 Apr 1988 | He was buried on 27 Apr 1988, age 77, in Saint Mary's Cemetery, located in Remsen, Plymouth County, Iowa.  |
Sylvester Kobberman