Peter Davidson Robertson
( = Descendancy chart to this point, = Expand, = Collapse)
- 1 Peter Davidson Robertson
- Mary Biggar
- 2 Grace Biggar Robertson b. 16 Jan 1873 d. 3 Nov 1906
- + Archibald Carmichael b. 15 Dec 1871 d. 24 Dec 1942
- + Archibald Carmichael b. 15 Dec 1871 d. 24 Dec 1942
- 2 Grace Biggar Robertson b. 16 Jan 1873 d. 3 Nov 1906
- Mary Biggar