1885 Oct 30 born Hants. His father James was a Lt in the Royal Navy. The family were not in UK censuses of 1891 nor 1901
1906 Oct 31 enlists in Royal Navy

1907 Mar 16 married Hants to Leila Adelaide Lonergan (1883–1960)

1911 census He is on a RN ship - a 4th class engine room artificer, married
1919 Apr 9 Discharged from RN
1921 Jun 13 enlisted with RIC no 81488. Fitter, Turner & ex-Sailor
1922 Mar 26 disbanded
THe then disappears and cannot be found
1929 His wife married Robert Diggle in Portsmouth in 1929. So Arthur Thornback was not around at that point