Hi
Yes, I think it may be them!
1891: 15 Varlry Road, Tottenham, Middlesex
Head: Robert CLARK 38. at Checkbook Manufactory , b Dumfries
Wife: Annie CLARK 26, b Russia British Subject
Dau: Marjorie CLARK 2 weeks, b London
Nurse: ELiza CONNOR 42, b Buckley, North Wales
RG12 / Piece: 1072 / Folio 121 / Page 25
(Tottenham fell into the Edmonton registration District)
Now in 1901, your Annie was aged 30, listed as wife with "husband absent" and in Wanstead, Essex with son John age 5 and Nancy age 1, and a number of servants...
Will see if I can spot Robert and Marjorie in 1901 - maybe he had a middle name of John.....
cheers
AMBLY