William Allen Blair
(
= Descendancy chart to this point, 
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- 1 William Allen Blair [1]
- Mary Eleanor Fries
- 2 Margaret Agnes Blair [1.1] b. 25 Nov 1896 d. 1 Apr 1994
- Robert Alexander McCuiston b. 25 May 1891 d. 1 Dec 1961
- 3 Robert Alexander McCuiston, Jr. [1.1.1] b. 19 Sep 1923 d. 15 May 2003
- Irene Cornelia Murray b. 1 Oct 1933 d. 15 Mar 1983
- 4 Robert Alexander McCuiston, III [1.1.1.1]
- + Ellen Bennett West
- Wanda Little
- 5 Robert Alexander McCuiston, IV [1.1.1.1.1]
- 5 Rebecca Blair McCuiston [1.1.1.1.2]
- 5 Robert Alexander McCuiston, IV [1.1.1.1.1]
- + Ellen Bennett West
- 4 Cornelia Murray McCuiston [1.1.1.2]
- + Rory Craig Shelton d. 10 Oct 1986
- + Donald Lawson
- + Rory Craig Shelton d. 10 Oct 1986
- 4 Margaret Blair McCuiston [1.1.1.3]
- Stanley A. Gall
- 5 Kristen Blair Gall [1.1.1.3.1]
- 5 Emily Ketterling Gall [1.1.1.3.2]
- 5 Heidi (C\K)atherine Gall [1.1.1.3.3]
- 5 Kristen Blair Gall [1.1.1.3.1]
- 4 Patricia Kornegay McCuiston [1.1.1.4]
- 4 Robert Alexander McCuiston, III [1.1.1.1]
- + JoAnne White b. 7 May 1931 d. 29 Jul 2022
- 3 Marian Blair McCuiston [1.1.2] b. 9 Jan 1925 d. 3 Apr 2023
- Reverend Paul DeSchweinitz Couch b. 25 Jun 1921 d. 24 Jul 1994
- 4 Marian Blair Couch [1.1.2.1]
- 4 Marjorie Allison Couch [1.1.2.2]
- 4 Frederick Franklin Couch [1.1.2.3]
- 4 Margaret Elizabeth Couch [1.1.2.4]
- 4 Paul DeSchweinitz Couch, Jr. [1.1.2.5]
- + Charlene
- + Charlene
- 4 Marian Blair Couch [1.1.2.1]
- 3 Erdmuth Dorothea McCuiston [1.1.3]
- Charles Scott Venable, Jr. b. 11 Aug 1924 d. 17 Nov 2011
- 4 Charles Scott Venable, III [1.1.3.1]
- 4 Francis Preston Venable [1.1.3.2]
- 4 Erdmuth Dorothea Venable [1.1.3.3]
- 4 William Blair Venable [1.1.3.4]
- 4 Charles Scott Venable, III [1.1.3.1]
- 3 Robert Alexander McCuiston, Jr. [1.1.1]
- 2 Margaret Agnes Blair [1.1]