Nielsen Hayden genealogy
William Gerard

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- 1 William Gerard [1] d. Bef 1567
- + Constance Rowson b. Abt 1537 d. Aft 1567
(Unknown mistress of Thomas Gerard)
- 2 Thomas Gerard [1.1]
b. Abt 1541 d. Between 21 Dec 1628 and 12 Jan 1629
Grace d. Bef 1586
- 3 John Gerard [1.1.1]
b. 1584 d. Aft 1648
Isabel d. Dec 1655
- 4 Dr. Thomas Gerard [1.1.1.1]
b. Bef 10 Dec 1608 d. Between 28 Jan 1673 and 19 Nov 1673 [ =>]
- 4 Dr. Thomas Gerard [1.1.1.1]
- 3 John Gerard [1.1.1]
- 2 Thomas Gerard [1.1]
- + Constance Rowson b. Abt 1537 d. Aft 1567