Martha Lowry
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- 1 Martha Lowry [1]
- Samuel Orr b. 1810
- 2 James Laughlin Orr [1.1] b. 31 Oct 1838 d. 4 Feb 1919
- Kate Howes b. 6 Sep 1840 d. 13 Sep 1887
- 3 Emily Shaw Orr [1.1.1] b. 26 Jul 1866 d. 9 Feb 1952
- George Sonntag Clifford b. 8 Apr 1858 d. 10 Dec 1927
- 4 George Orr Clifford [1.1.1.1] b. 15 Jan 1897 d. 22 Jul 1949
[ =>]
- 4 James Lowry Clifford [1.1.1.2] b. 24 Feb 1901 d. Apr 1978
- 4 George Orr Clifford [1.1.1.1]
- 3 Martha Dalzell Orr [1.1.2] b. 12 Dec 1869 d. 1951
- Charles Denby b. 14 Nov 1861 d. 14 Feb 1938
- 4 James Orr Denby [1.1.2.1] b. 10 Oct 1897
- 4 Charles Denby [1.1.2.2] b. 5 Feb 1901
- 4 Edwin Orr Denby [1.1.2.3] b. 4 Feb 1903 d. 12 Jul 1983
- 4 James Orr Denby [1.1.2.1]
- 3 Samuel Lowry Orr [1.1.3] b. 18 Aug 1872 d. 29 Jul 1948
- Louise Dunkerson b. 20 Jul 1878 d. 25 Jun 1953
- 4 Samuel Orr [1.1.3.1] b. 23 Nov 1906 d. 1995
- 4 Laura Kendrick Orr [1.1.3.2] b. 19 Dec 1909 d. 22 Aug 2009
- 4 Robert Dunkerson Orr [1.1.3.3] b. 17 Nov 1917 d. 2004
- 4 Samuel Orr [1.1.3.1]
- 3 Emily Shaw Orr [1.1.1]
- 2 James Laughlin Orr [1.1]