1881 for William snr. who now appears to be Williams father so your line goes William your grandfather, John Thomas his father William his father and William his father

William 48 hawker
Catherine 40 wife
William 18 son
Thos. 16 son
Francis 14 son
George 11 son
Matilda 7 dau
Margt. 4 dau
RG11; 5104; 13; 17
Foundry Lane Hexham
the 1881 census is free to view and from there you can see there are other Young familes on the same page who i would assume are related to yours

(i know you shouldnt assume anything but i feel pretty certain they are)
Thomas Young head mar. 33 hawker b. Hexham
margaret 30 b. Hallington Coquet
Isabelle 14 neice b. Stanley Durham
George son 5 b. Hexham
Thomas son 4 b. do.
next household
Francis head mar 26 Hawker b. new york Durham
annie wife b. Scotland
Elizabeth dau scholar b. Hill Top Durham
Francis son b. Durnell Durham
followed by your Williams household

here is William (JT father) marriage to Elizabeth Stewart
Marriages Sep 1884 Hexham 10b 373
Coates William
Moorhead Margaret
Stewart Elizabeth
Young William