Benjamin married Mary K. (Polly) Kerr on 7 Apr 1845 in , Barbour , Virginia, United States. Mary (daughter of Robert Dunlap Kerr and Elizabeth Ann Arbogast) was born on 31 Jul 1818 in Green Bank, Bath Co., Va; died on 12 May 1900 in Boyer, Pocahontas Co., Wv; was buried in Kerr Cem., Boyer, Wv. [Group Sheet] [Family Chart]

1. Eliza Ann Irvine was born about 1846 in Pocahontas Co., Va/Wv; and died.
2. Edward Newton Ervine was born in 1848 in Pocahontas Co., Va/Wv; died on 1 Oct 1915.
3. Robert Bailey Irvine was born on 20 Jun 1851 in Pocahontas Co., Va/Wv; died on 11 Sep 1954.
4. Margaret Lasetta Irvine was born on 3 Jul 1856 in Pocahontas Co., Va/Wv; died on 8 Dec 1897.
5. Marietta J. Ervine was born on 14 Dec 1858; and died.