LancashireBMD has only 1 Thomas Boocock born 1857 +/- 2 years - in Chorley, Mother's maiden name Boocock.
So maybe this is Thomas in 1861?
RG09, Piece 3121, Folio58, Page 50
Brooke Street, Chorley
Carr, William Head M 23 Cotton Weaver b Colne
Carr, Matilda Wife F 22 b Eccleston
Boocock, Thomas Son M 3 Scholar b Chorley
Carr, Mary Daughter F 1 b Chorley
Carr, Albert Son M 2 weeks b Chorley
And, assuming this is the correct Thomas, the marriage:
March qtr 1859
Chorley district vol 8e, page 477
Carr, William
Boocock, Matilda
(Confirmed by LancashireBMD)
Wrong Thomas! See later post