The JWM from 1871 census is living with an aunt and family in 1881.
8 Dene Terrace, North Shields,
Jane Johnson, wid, 48,
John W.Moore, Nephew, 14, Joiner, b. North Shields,
+ several Johnson children.
Its definitely the same person, as the Johnson family are living next door to the Moor family in South St. in 1871.
Jane appears to be Johns mothers sister.
John Moor married Margaret Ann Harper, 30 Oct 1861, Tynemouth. Fathers Andrew Moor and William Harper.
Thomas Johnson married Jane Harper, 17 Oct 1853, Tynemouth. Fathers James Johnson and William Harper.
So question is whether this JWM is the same one who married Isabella Sturrock and later Annie Thompson. Does the marriage to Isabella give any other clues, who is the second witness? Any address for the groom? Failing that, the marriage cert to Annie Thompson may confirm his father as John, in which case the earlier father George was perhaps a mistake. If he says his father is George again, then maybe the JWM from 1871 and 81 is the wrong one.
Alan.