Elkanah married Harriet Fuller Alexander in 1839. Harriet (daughter of Ezra Alexander and Lucretia Fuller) was born in 1821 in Troy, Cheshire, New Hampshire, USA; died on 24 Jul 1887 in Brocton, Plymouth, Massachusetts, USA; was buried in Melrose Cemetery, Brockton, Plymouth, Massachusetts, USA. [Group Sheet] [Family Chart]

1. Harriet M. Holbrook was born on 5 Jun 1840 in Swanzey, Cheshire, New Hampshire, USA; died on 29 Mar 1894 in Brockton, Plymouth, Massachusetts; was buried in Woodland Cemetery, Keene, Cheshire, New Hampshire, USA.
2. Anna L. Holbrook was born in 1842 in New Hampshire, USA; died on 14 Mar 1891 in Brockton, Plymouth, Massachusetts; was buried in Melrose Cemetery, Brockton, Plymouth, Massachusetts.
3. Walter Duane Holbrook was born on 18 Nov 1846 in Richmond, Cheshire, New Hampshire, USA; died on 25 May 1906 in Pennsylvania, USA; was buried in Cedar Hill Cemetery, Philadelphia, Philadelphia, Pennsylvania, USA.
4. Warren Dewitt Holbrook was born on 18 Nov 1846 in Brockton, Plymouth, Massachusetts; died on 2 Mar 1911 in Brockton, Plymouth, Massachusetts; was buried in Melrose Cemetery, Brockton, Plymouth, Massachusetts.
5. Bertha Adelaide Holbrook was born on 13 Apr 1857 in Fitzwilliam, Cheshire, New Hampshire, USA; died on 20 Mar 1894 in Brockton, Plymouth, Massachusetts, USA; was buried in Melrose Cemetery, Brockton, Plymouth, Massachusetts, USA.