Dennis O'Neil Guilfoyle
1900 - 1970 (69 years)(
= Descendancy chart to this point, 
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- 1 Dennis O'Neil Guilfoyle [1] b. 11 Dec 1900 d. 17 Sep 1970
- Gwendolyn Ruth Archer b. 29 Apr 1912 d. 27 Jan 2008
- 2 Sheilagh Guilfoyle [1.1]
- Trevor Laing b. Abt 1934 d. Abt 2011
- 3 Christopher Russell Laing [1.1.1]
- 3 Andrew Laing [1.1.2]
- 3 Christopher Russell Laing [1.1.1]
- + Robert John White
- 2 David Alexander O'Neil Guilfoyle [1.2]
- Christine Angela Davis
- 3 Tanya Angela Guilfoyle [1.2.1]
- Russell Donavan Bush
- 4 Jordan Bush [1.2.1.1]
- 4 Lexi Bush [1.2.1.2]
- 4 Kira Bush [1.2.1.3]
- 4 Jordan Bush [1.2.1.1]
- + Noel Clinton March Jr.
- 3 David Shane O'Neil Guilfoyle [1.2.2]
- 3 Tanya Angela Guilfoyle [1.2.1]
- 2 Sheilagh Guilfoyle [1.1]