Hi
Looking for 4 East Street,(511)   in 1891 no 4 does not appear to have been entered.  Nos 5 and 6 are there, Sorry.  Maybe I just cant see it?, though I did look right through 511.
No Eastney Street or similar.
There is a 'East Row' 
4 East Row, St Nicholas, Greenwich.  507 p44b
Emma THORN   Head  Widow 46 needlewoman, 
her Mother Sara L OGDEN   Widow 79 
and sister Mary Ogden 35 single a Needlewoman
A boarder James Saunders? 34 General Worker all born Deptford.
Good luck
Reyz