I think our Margaret was born earlier..if you look at census she was about same age as Jacob throughout consistantly..

I estimated abt 1775-1776..dau Hannah b 1797

1800 - 26-44 birth yr 1755-1774
1810 - 26-44 birth yr 1765-1784
1820 - over 45 birth yr bef 1775
1830 - 50-60 birth yr 1770-1780
1840 - 60-70 birth yr 1770-1780

Harry