| Thayer, Isaac III | |
| B: | 4 Jul 1719 |
| Mendon, Worcester County, Massachusetts, USA | |
| D: | 1827 |
| Uxbridge, Worcester County, Massachusetts, USA | |
| Metcalf, Mercy Mary | |
| B: | 20 Feb 1719 |
| Braintree, Norfolk County, Massachusetts, USA | |
| M: | 14 Sep 1739 |
| Bellingham, Norfolk County, Massachusetts, USA | |
| D: | 1763 |
| Braintree, Norfolk County, Massachusetts, USA | |
| Thayer, Isaac Jr | |
| B: | 24 Sep 1695 |
| Mendon, Worcester County, Massachusetts, USA | |
| D: | Dec 1754 |
| Mendon, Worcester County, Massachusetts, USA | |
| Thayer, Meriam | |
| B: | 3 Jun 1699 |
| Mendon, Worcester County, Massachusetts, USA | |
| M: | 18 May 1716 |
| Mendon, Worcester County, Massachusetts, USA | |
| D: | 16 Feb 1750 |
| Mendon, Worcester County, Massachusetts, USA | |
| Thayer, Isaac | |
| B: | 1672 |
| Mendon, Worcester County, Massachusetts, USA | |
| D: | Dec 1754 |
| Mendon, Worcester County, Massachusetts, USA | |
| Rockwood, Mercy | |
| B: | 1672 |
| Mendon, Worcester County, Massachusetts, USA | |
| M: | 1 Apr 1691 |
| Mendon, Worcester County, Massachusetts, USA | |
| D: | 18 Dec 1700 |
| Mendon, Worcester County, Massachusetts, USA | |
|
| Thayer, Ferdinando | |
| B: | 18 Apr 1625 |
| Thornbury, Gloucestershire, England | |
| D: | 28 Mar 1713 |
| Mendon, Worcester County, Massachusetts, USA | |
| Hayward, Hulda | |
| B: | 7 Oct 1636 |
| London, England | |
| M: | 14 Jan 1653 |
| Braintree, Norfolk County, Massachusetts, USA | |
| D: | 1 Sep 1690 |
| Mendon, Worcester County, Massachusetts, USA | |
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