- Born: 1831, Brea, Illogan, Cornwall
- Christened: 17 Apr 1831, Illogan, Cornwall
- Married: 1853, Redruth District, Cornwall
- Died: 8 Jun 1872, Tavistock, Devon, England
James Mayne died aged 42 years (GROE Death Index, vol. 5b, p. 250).
M.I. in Tuckingmill Churchyard
James married Alice Thomas MAYNE, daughter of James MAYNE of Tuckingmill and Susanna THOMAS, in 1853 in Redruth District, Cornwall. (Alice Thomas MAYNE was born about 1832 in Illogan, Cornwall, died on 7 Apr 1926 in Tucking Mill by Camborne, Cornwall and was buried on 12 Apr 1926 in Tuckingmill All Saints, Camborne, Cornwall.)
Married during 4th Quarter (GROE Marriage Index, vol. 5c, p. 538).
Probably married in Illogan.