| Birth | about 1820 | John Bunker was born about 1820 in Canada. |
| Marriage | 1846 | He and Mary Miller were married in 1846 in Adair County, Iowa. |
| 1860 Census | 14 Jun 1860 | John Bunker appeared as head of household in the 1860 Federal Census of Center, Cedar County, Iowa, as John Bunker. Living with him was his wife, Mary, and their children, Charles, Augusta and Josephine. He is a male age 40. His occupation is farmer. He was born in Canada. |
| 1870 Census | 20 Jun 1870 | John Bunker appeared as head of household in the 1870 Federal Census of Center, Cedar County, Iowa. |
| 1880 Census | 17 Jun 1880 | John appeared in the 1880 Federal Census of Center Township, Cedar County, Iowa, as John Bunker, with his wife, Mary. Their son, Peter, was listed as living with them. He is a married white male, age 60. His occupation is farmer. He was born in Canada. His father was born in Vermont, his mother in Canada. |
John Bunker