| Birth | 26 Jun 1876 | John William Graff was born on 26 Jun 1876 in Minnesota. |
1880 Census
(with Parents)
| 4 Jun 1880 | John appeared in the 1880 Federal Census of Marcus Township, Cherokee County, Iowa, as John Graff, in the household of his parents, Mary and Theodore Graff. He is a single white male, age 3. Son of head of household. His occupation is at home. He was born in Minnesota. His mother and father were born in Luxembourg. |
| Marriage | 20 Feb 1900 | John William Graff and Anna Catherine Bunkers, daughter of Henry Bunkers and Barbara Simmerl, were married on 20 Feb 1900 in St. Joseph's Catholic Church, Granville, Sioux County, Iowa. |
| 1900 Census | 5 Jun 1900 | John William Graff appeared as head of household in the 1900 Federal Census of Caledonia Township, O'Brien County, Iowa, as John Graff. Living with him was his wife, Anna, as well as a 20 year old boarder, August Bange. He is a married white male, age 23. Born June 1876. Married 0 years. He was born in Minnesota. His mother and father were born in Germany. His occupation is farmer. He was unemployed 0 months. He can read, write, and speak English. He own his home. It is mortgaged and is a farm. Number 26 on the farm schedule. |
| 1910 Census | 7 May 1910 | John William Graff appeared as head of household in the 1910 Federal Census of Caledonia Township, O'Brien County, Iowa, as J. W. Graff. Living with him was his wife, Anna, and their children, Joseph, Barbara, Florence, Milo and Gertrude. He is a married white male, age 33. Married 10 years. He was born in Minnesota. His mother and father were born in Germany. He can speak English. His occupation is farmer on a farm. He works on his own. He can read and write. He owns his home, free of mortgage. It is a farm, number 127 on the farm schedule. |
| 1920 Census | 14 Jan 1920 | John William Graff appeared as head of household in the 1920 Federal Census of Caledonia Township, O'Brien County, Iowa, as John W. Graff. Living with him was his wife, Anna, and their children, Joseph, Barbara, Florence, Milo, Gertrude, Magnus, Marie, Otto and Charlotte. |
| Residence | 1924 | In 1924 John William Graff and Anna Catherine Bunkers lived in Caledonia, O'Brien County, Iowa; owned 231 acres, section 5. |
| Death | 5 Apr 1925 | John William Graff died on 5 Apr 1925 at age 48. Cause of death: tuberculosis. |
| Burial | after 5 Apr 1925 | He was buried after 5 Apr 1925 in Saint Joseph's Catholic Church Cemetery, located in Granville, Sioux County, Iowa.  |
John William Graff