Timeline at Graeme Park |
| 1721 |
Building started on malthouse at Keith's "Fountain Low" |
| 1723 |
Earliest date for the building of the Keith House |
| 1739 |
Dr. Graeme acquires Fountain Low and renames it Graeme Park |
| 1755 |
Renovations to interior at Graeme Park |
| 1765 |
Dr. Graeme retires for health reasons, spends more time at Graeme Park |
| 1772 |
Dr. Graeme dies. Elizabeth Graeme Fergusson inherits Graeme Park |
| 1778 |
Graeme Park confiscated due to Henry Hugh Fergusson's loyalist sympathies |
| 1781 |
Graeme Park returned to Elizabeth |
| 1795 |
Dr. William Smith sells Graeme Park property for Elizabeth |
| 1801 |
Samuel Penrose buys 300 acres, including Keith House, at Graeme Park |
| 1810 |
Penroses build new farmhouses |
| 1920 |
Welsh Strawbridge buys Graeme Park from the Penroses |
| 1958 |
Strawbridges give Keith Mansion and 42 acres to the Pennsylvania Historical and Museum Commission (PHMC) |