The iomfhs.im research section has the marriage Jan 23 1911.
Robert was the son of Frederick Oates and Elizabeth Cowell B Jan 25 1881 in Douglas.
1881 census at 6 Drury Lane Douglas:-
Frederick Oates 29 Carpenter and Joiner Douglas
Elizabeth 26 Wife Douglas
Frederick William son 3 England (Liverpool)
Elizabeth Daugh. 2 Douglas
Robert Jas. son 2M. Douglas
Frederick and Elizabeth were married at St Saviours Liverpool 1875.
Emily May Cunningham was born Feb 1 1882 in Douglas to Henry Cunningham and Eleanor Cain. They were married in Braddan Oct 14 1877 but by 1891:-
At 5 Stanley Terrace Douglas, with Eleanor's family:-
Ellen Widow 30 Peel
May 9 Douglas
James 7 Douglas
Len Faragher