Hi Mike
Did he have a couple of sisters - Eliza & Emma?
There is an entry on 1861 census at Seighford for a William
Woolrich (sic) aged 18 from Brockton, a general servant on a farm. The entry appears to show 2 female servants after him with ditto for surname ie also Woolrich.
1861 census, Seighford - Doxey
RG 9/ 1905 folio 39 pg 1
Household of William & John Mann - farmers of 213 acres employing 4 lab & 2 boys
William Woolrich; serv; 18; unm; general servant; Staffs Brockton
Eliza do; serv; unm; 19; general servant; Staffs, Bradley
Emma do; serv; 16; general servant; Staffs, Church Eaton
Don't know if this fits with what you already know

Regards
SandraC