Timeline Chart

Male  Johannes Polhemus

Remove Person
Show Age Marker

Female  Mary Ryckman

Remove Person
Add another person to chart:
Person ID:    Find Individual ID

Zoom In
Zoom Out

Show Lifespan chart
1739--
1740--
1744--
1748--
1752--
1756--
1760--
1764--
1768--
1772--
1776--
1780--
1784--
1788--
1792--
1796--
1800--
1804--
1808--
1812--
1816--
1820--
1824--
1828--
Birth -- 25 June 1744 27 22
Death -- 30 September 1823 ‎(Age 79)‎ Tappan DC