| Last name | Bonsal |
| First name | Isaac |
| Display name | Isaac Bonsal |
| Birth date | 1765 |
| Death date | 1831 |
| Death place | richm2 |
| Gender | m |
| Affiliations | Society of Friends, Philadelphia Yearly Meeting of Friends. Indian Committee |
| Bio notes | Isaac Edward Bonsall (1765-1831) was a prominent Philadelphia Quaker who devoted his life to work with the Indians of Western New York, Pennsylvania, and Ohio, and to caring for the mentally ill. Bonsall was born on October 31, 1765 and married three times: Mercy Milhouse, Mary Newbold, and Ann Paul. He ran the Friends Hospital for the mentally ill between 1817 and 1823. Bonsall was a Quaker minister and was active with the Committee of Indian Affairs of the Philadelphia Yearly Meeting. |
| Data notes | Journals at the Clements Library. |
Baltimore Yearly Meeting Indian Committee Minutes, 1795-1815
Halliday Jackson's Journal, 1806
Isaac Coates Journal of Journeys to the Indian Country
William Allinson Diary, Volume 1