On 8 Jul 1915 when Percy Tomes was 31, he married Elsie May MORCOM in Parish Church, Kew, Surrey, England. Born in 1893 in Cardiff, Wales. Elsie May died in 29 Cherry Orchard, Stains, Middlesex, England, on 8 Feb 1946; she was 53.
- 1901 Census, she & her family are living at 21 Talbot Street, Cardiff. Her father Joseph was born in Swansea, Glamorganshire, recorded as a Superintendent for an Assurance Company & her mother was born in Gwinear, Cornwall. There were also 2 sisters and 1 brother. Elsie May Morcom 22, Spinster - Residence at the time of Marriage: 2 High Park Road, Kew, Surrey - Father: Joseph Morcam, Superintendent. Witnesses: Emma Tomes, J. Morcom & Thos. H. Power. (Step-grandmother & the fathers of the bride & groom).