| Residence | | John Sloniker lived in Lima, Allen County, Ohio. |
| Residence | | John Sloniker lived in Mooreland, Indiana. |
| Residence | | John Sloniker lived in Cambridge City, Indiana. |
| Birth | 6 Jul 1856 | He was born on 6 Jul 1856 in Hagerstown, Wayne County, Indiana. |
| Marriage | 27 Sep 1884 | He and Mary Rebecca Waters, daughter of James Leonard Waters and Margaret Jones Current, were married on 27 Sep 1884. |
| 1900 Census | 4 Jun 1900 | John Sloniker appeared as head of household in the 1900 Federal Census of Lima, Allen County, Ohio, as John Slonike. Living with him was his wife, Mary, and their children, Ross, Hurst and Mark. He is a married white male age 43. Lives at 319 West Kibby Street. Born July 1856. He's been married 15 years. He was born in Indiana. His mother and father were born in Virginia. His occupation is lumber buyer. He was unemployed 0 months. He can read, write, and speak English. He owns his home, free of mortgage. It is a house. |
| Residence | about Jul 1906 | About Jul 1906 John Sloniker lived in Cincinnati, Hamilton County, Ohio. |
| 1910 Census | 16 Apr 1910 | John Sloniker appeared as head of household in the 1910 Federal Census of Springfield Township, Hamilton County, Ohio, as John Sloniker. Living with him was his wife, Mary, and their children, Ross, Hurst and Mark. He is a married white male, age 52. Lives at 810 Williams Avenue. He's been married once for 25 years. He was born in Indiana. |
| 1920 Census | 19 Jan 1920 | John Sloniker appeared as head of household in the 1920 Federal Census of Precinct O, Hamilton County, Ohio, as John Sloniker. Living with him was his wife, Mary. He is a married white male, age 63. He owns his home, it is a farm. He can read and write. He was born in Indiana. His mother and father were born in Indiana. He can speak English. His occupation is wholesale lumber in his own business. He works on his own account. |
| Death | 10 Mar 1944 | John Sloniker died on 10 Mar 1944 in Wyoming, Hamilton County, Ohio, at age 87. |
| Burial | after 10 Mar 1944 | He was buried after 10 Mar 1944, located in Cincinatti, Hamilton County, Ohio. |
John Sloniker