Alexander married Rebecca SKINNER in 1866 in Saint John, New Brunswick. Rebecca (daughter of Samuel SKINNER and Phebe Sherwood GOLDING) was born on 9 Jul 1841 in Saint John, Saint John, New Brunswick; died on 12 Oct 1917 in Saint John, Saint John, New Brunswick; was buried in Fernhill Cemetery, Saint John, Saint John, New Brunswick. [Group Sheet]

1. Elisabeth M. ROBERTSON was born on 2 Apr 1869 in Saint John, New Brunswick; died on 20 Feb 1947 in Sussex, Kings, New Brunswick.
2. Grace Osborne ROBERTSON was born on 1 Jan 1871 in Saint John, Saint John, New Brunswick; died on 28 Feb 1958 in Saint John, Saint John, New Brunswick.
3. Alice Partelow ROBERTSON was born on 29 Nov 1873 in Sussex, Kings, New Brunswick; died on 17 Oct 1944 in Sussex, Kings, New Brunswick.
4. Ralph Nelson Medley ROBERTSON was born on 1 Feb 1876 in New Brunswick; died on 16 Nov 1940 in Saint John, Saint John, New Brunswick.
5. Isabelle Chipman ROBERTSON was born in 1877 in New Brunswick; died in 1928 in Pennsylvania; was buried in Evansburg, Montgomery, Pennsylvania.
6. Charles Sherwood Erving ROBERTSON was born on 14 Feb 1880 in Saint John, New Brunswick; died on 9 Oct 1937 in Moncton, Westmorland, New Brunswick; was buried in Fernhill Cemetery, Saint John, Saint John, New Brunswick.