Cyrus married Sarah Strang Stewart 22 Jun 1892, Brewer, Penobscot, Maine, United States. Sarah (daughter of Sylvanus Stewart and Mary Robertson) was born 22 May 1874, Tabusintac, Northumberland, New Brunswick, Canada; died 22 Oct 1953, Hudson, Penobscott, Maine, United States. [Group Sheet]

1. William J Carmault was born 11 Mar 1893, Brewer, Penobscot, Maine, United States; died 5 Nov 1918, Brewer, Penobscot, Maine, United States.
2. Bertha M Carmault was born 15 Aug 1894, Brewer, Penobscot, Maine, United States; died Bef May 2003.
3. Clarence F Carmault was born 18 Jun 1896, Brewer, Penobscot, Maine, United States; died 26 Nov 1966.
4. Nina Bell Carmault was born 1898; died 2 Apr 1946, Bangor, Penobscot, Maine, United States.
5. Linwood P Carmault was born 14 Feb 1903, Brewer, Penobscot, Maine, United States; died 18 Apr 1975, Calais, Washington, Maine, United States.
6. Thelma N Carmault was born 12 Jun 1909; died 13 May 1964, Portland, Cumberland, Maine, United States.
7. Dorothy Carmault was born 18 Jan 1911, Brewer, Penobscot, Maine, United States; died 7 Feb 2003, Bangor, Penobscot, Maine, United States; was buried , Mount Hope Cemetery.