ah, the Ernest etc may help - I also thought it was
Lancaster PoB in the 1881 census ....
Suspect that Margaret Hannah Mewburn may be seen in 1871 as Mewbourn c1863, Stockton - altho she also disappers by 1881

Comparing the Census with FreeBMD's list of
Victors born and died between 1889 and 1891, doesnt throw up any anomalies - apart from a Victor Watson* missing from the BMD Index, your man is the only one missing from the 1891 census ... suggesting he's totally missing, or not called Victor

The list of Arthurs is a bit longer ....
*Shown as a Grandson of the Standen family in Guestling - cant see his BMD entry anywhere in Sussex....