| Name: | Isaiah Thomas |
| Age: | 81 |
| Date of Birth: | |
| Date of Death: | August 15, 1891 |
| Comments: | Gravestone illegible in 1997, but in 1915 Chas. Barker could read it. |
| Church Records: | Merion Meeting |
| Sources: | – Records of Merion Graveyard, by Thomas Wynn and C.E. Hires, 1702-1808 |