Bef 1628 - 1683 (~ 55 years)
| Thomas UNDERWOOD | |
| B: | 1645 |
| , , VA | |
| D: | 1717 |
| , , VA | |
| William UNDERWOOD | |
| D: | 1801 |
| Joseph UNDERWOOD | |
| B: | Abt 1684 |
| , New Castle, DE, USA | |
| D: | Yes, date unknown |
| Rachel UNKNOWN | |
| D: | 23 Feb 1744 |
| Christian Hundred, New Castle, DE, USA | |
| Benjamin UNDERWOOD | |
| B: | Abt 1686 |
| Pencader Hund., New Castle, DE | |
| D: | 1759 |
| Pencader Hund., New Castle, DE | |
| Sarah UNKNOWN | |
| D: | 1743 |
| Mary UNDERWOOD, * | |
| B: | Abt 1710 |
| , Chester, PA, USA | |
| D: | Yes, date unknown |
| Thomas COOK, * | |
| B: | 29 Aug 1704 |
| Norwich, Cheshire, ENG | |
| M: | 28 Sep 1731 |
| London Grove, Chester, PA, USA | |
| D: | 1752 |
| Warrington M.M., Warrington Twp., York, PA, USA | |
| Joseph WELLS | |
| B: | 30 Sep 1697 |
| Queen Anne's Parish, Prince George's, MD | |
| M: | 27 May 1758 |
| New Garden M.M., Surry, NC, USA | |
| D: | 27 May 1758 |
| Cane Creek, Orange, North Carolina, United States | |
| Samuel UNDERWOOD | |
| B: | Abt 1713 |
| London Grove M.M., Chester, PA, USA | |
| D: | Abt 1773 |
| , Orange, NC | |
| Ann TRAVILLA | |
| B: | 1721 |
| , Chester, PA, USA | |
| M: | 10 Mar 1738 |
| London Grove M.M., Chester, PA, USA | |
| D: | 1804 |
| , Randolph, NC, USA | |
| Elizabeth UNDERWOOD | |
| B: | 18 Aug 1714 |
| , Chester, PA, USA | |
| D: | Bef 1767 |
| William UNDERWOOD | |
| B: | 18 May 1720 |
| , York, PA, USA | |
| D: | 18 May 1785 |
| , York, PA, USA | |
| Ruth L. BAILS | |
| B: | Abt 1721 |
| M: | 2 Jan 1743 |
| London Grove M.M., Chester, PA, USA | |
| D: | 14 Nov 1789 |
| Joseph UNDERWOOD | |
| B: | Abt 1722 |
| Christian Hundred, New Castle, DE, USA | |
| D: | Aft Apr 1757 |
| , New Castle, DE, USA | |
| Ann UNDERWOOD | |
| B: | 1723 |
| Warrington, Bucks, PA, USA | |
| D: | Yes, date unknown |
| Jane UNDERWOOD | |
| B: | Abt 1724 |
| Christian Hundred, New Castle, DE, USA | |
| D: | Yes, date unknown |
| Olive UNDERWOOD | |
| B: | Abt 1726 |
| Christian Hundred, New Castle, DE, USA | |
| D: | Bef 1767 |
| Benjamin UNDERWOOD | |
| B: | Abt 1728 |
| London Grove, Chester, PA, USA | |
| D: | 8 Dec 1803 |
| Warrington Twp., York, PA | |
| Susanah GRIEST | |
| M: | Jan 1750 |
| Warrington M.M., Warrington Twp., York, PA, USA | |
| D: | Aft 1773 |
| Of Warrington Twp., York, PA | |
| Elihu UNDERWOOD | |
| B: | Abt 1730 |
| Warrington Twp., York, PA | |
| D: | Abt 1801 |
| Warrington Twp., York, PA | |
| Margaret MARSH | |
| B: | maybe 1730 |
| M: | 30 Dec 1756 |
| Warrington M.M., Warrington Twp., York, PA, USA | |
| D: | Yes, date unknown |
| John UNDERWOOD | |
| B: | Abt 1732 |
| Warrington, Bucks, PA, USA | |
| D: | 18 Jun 1776 |
| Warrington Twp., York, PA | |
| Ruth UNDERWOOD | |
| B: | Abt 1734 |
| Warrington Twp., York, PA | |
| D: | Yes, date unknown |
| Elizabeth CLOUD | |
| B: | 14 Oct 1711 |
| M: | 5 Aug 1738 |
| Kennett Twp., Chester, PA, USA | |
| D: | Bef 24 Oct 1746 |
| Alexander UNDERWOOD | |
| B: | Abt 1688 |
| , Anne Arundel, MD | |
| D: | 31 Oct 1767 |
| Warrington Twp., York, PA | |
| Jane HARRY | |
| B: | Abt 1687 |
| Chichester, Chester, PA, USA | |
| M: | Abt 1710 |
| , New Castle, DE, USA | |
| D: | Bef 25 Apr 1743 |
| London Grove, Chester, PA, USA | |
| Sarah Boatwater BEALS | |
| M: | 16 Feb 1748 |
| Monocacy M.M., Prince George's, MD | |
| D: | Abt 1761 |
| Thomas UNDERWOOD | |
| B: | Abt 1690 |
| D: | Yes, date unknown |
| Elizabeth UNDERWOOD | |
| B: | Abt 1692 |
| D: | Bef 1766 |
| Evan HARRY | |
| B: | 1687 |
| Chichester, Chester, PA, USA | |
| M: | Abt 1714 |
| D: | Bef 15 Aug 1728 |
| East Marlboro, , PA, USA | |
| Samuel UNDERWOOD | |
| B: | Aft 1725 |
| D: | Yes, date unknown |
| Samuel UNDERWOOD | |
| D: | 1746 |
| Samuel UNDERWOOD | |
| B: | Abt 1656 |
| , Anne Arundel, MD | |
| D: | Aft 6 Nov 1722 |
| , New Castle, DE | |
| Mary Ann WILCOX | |
| B: | Abt 1670 |
| , New Castle, DE, USA | |
| M: | Abt 1685 |
| D: | Aft 1722 |
| Elizabeth UNDERWOOD | |
| B: | Abt 1661 |
| D: | Yes, date unknown |
| William COCKEY | |
| D: | 1697 |
|
| Thomas UNDERWOOD, * | |
| B: | Bef 1628 |
| D: | 1683 |
| Middleneck, Anne Arundel, MD | |
| Elizabeth UNKNOWN | |
| M: | Bef 1645 |
| D: | Bef 1674 |
