Robert married Maria Strang 26 Jun 1899, Brewer, Penobscot, Maine, United States. Maria (daughter of Nelson Wilson Strang and Hannah Price) was born 24 May 1880, Tabusintac, Northumberland, New Brunswick, Canada; died 20 May 1973, Searsport, , Maine, United States. [Group Sheet]

1. Garland Earl Gass was born 2 Jun 1901, Brewer, Penobscot, Maine, United States; died 24 Aug 1996, Portland, Cumberland, Maine, United States.
2. Melinda May Gass was born 15 Jun 1905, Brewer, Penobscot, Maine, United States; died 29 Nov 1989, Bangor, Penobscot, Maine, United States.
3. Samuel Joseph Gass was born 19 Dec 1907, Brewer, Penobscot, Maine, United States; died 4 May 1969, Bangor, Penobscot, Maine, United States.
4. Robert Burns Gass was born 13 Feb 1910, Brewer, Penobscot, Maine, United States; died 13 Mar 1977, Brewer, Penobscot, Maine, United States.
5. Avis Louise Gass was born 14 Nov 1914, Brewer, Penobscot, Maine, United States; died Bef 18 Aug 1998.
6. Daniel Edwin Gass was born 25 Jul 1917, Brewer, Penobscot, Maine, United States; died 17 Aug 1998, Holden, , Maine, United States; was buried , Mount Pleasant Cemetery, Bangor, , Maine, United States.
7. Anna Gass was born 1 Dec 1920, Brewer, Penobscot, Maine, United States; died 12 Oct 1997, Bangor, Penobscot, Maine, United States.