John Ormsby is recorded as serving as a lay reader for services from the Book of Common Prayer held at Fort Pitt. Ormsby will later serve as a trustee for the land granted by the Penn family to the Episcopal Church and as one of the first vestrymen of Trinity Church.
| 1750 | 1755 | 1758 |
| 1762 | 1775 | 1784 |
| 1785 | 1786 | 1787 |
| 1789 |
| Timeline | Creation | Wilderness | Margins | Struggles | Victory |

