| Birth | 30 Jan 1821 | William P. Barnell was born on 30 Jan 1821 in Rockingham County, Virginia. |
| Marriage | 22 Dec 1844 | He and Margaret Ann Jordan were married on 22 Dec 1844. |
| 1860 Census | 26 Jul 1860 | William P. Barnell appeared as head of household in the 1860 Federal Census of Perry Township, Delaware County, Indiana, as William Barnell. Living with him was his wife, Margaret, and their children, John, James, William, Silas, Catharine and Araminta, as well as, an unknown or excluded person . He is a male age 39. Occupation is farmer. Value of real estate owned is $6,000. Value of personal estate is $300. He was born in Virginia. |
| Possible Marriage date | 12 May 1863 | According to at least one source, William P. Barnell and Rebecca Lavina Lake were married on 12 May 1863. |
| Marriage | 12 May 1864 | William P. Barnell and Rebecca Lavina Lake, daughter of Ila Thornburg Lake and Rachel C. Current, were married on 12 May 1864 in Redkey, Jay County, Indiana. |
| 1870 Census | 9 Jul 1870 | William P. Barnell appeared as head of household in the 1870 Federal Census of Richland Township, Jay County, Indiana, as William Barnell. Living with him was his wife, Rebecca, and their children, William, Catharine, Araminta, Horton, Orus, Olen, Daniel and John. He is a white male, age 49. Occupation is farmer. The value of real estate owned is $8000. The value of personal estate is $1000. He was born in Virginia. He is a male citizen of the U.S. age 21 years and up. |
| 1880 Census | 4 Jun 1880 | William P. Barnell appeared as head of household in the 1880 Federal Census of Richland Township, Jay County, Indiana, as William Barnell. Living with him was his wife, Rebecca, and their children, Horton, Orus, Olen and Daniel. He is a married white male, age 59. His occupation is farmer. He has lung trouble. He was born in Virginia. His mother and father were born in Virginia. |
| 1900 Census | 6 Jun 1900 | William P. Barnell appeared as head of household in the 1900 Federal Census of Richland Township, Redkey, Jay County, Indiana, as William Barnell. Living with him was his wife, Rebecca. He is a married white male, age 69. Lives on Oak Street. Born January 1831. Married 36 years. He was born in Virginia. His mother and father were born in Virginia. His occupation is retired farmer. He can read, write, and speak English. He owns his home, free of mortgage. It is a house. |
| Death | 28 Mar 1906 | William P. Barnell died on 28 Mar 1906 in Redkey, Jay County, Indiana, at age 85.  |
| Burial | 30 Mar 1906 | He was buried on 30 Mar 1906, age 85, in Hillcrest Cemetery, located in Redkey, Jay County, Indiana. |
William P. Barnell 