HI
I agree with what has been found so far by the Forum Detectives. I think that maybe your friend may have ommited to add on that Thomas had a sort of double barrell surname
Births 2nd ¼ 1851
Thomas Raistrick Lambert
Registered in Bradford Y/Bradford WEst Yorkshire
Vol 23
Page 247
Maybe getting your friend to obtain this birth cert would finally confirm to them what is known/unknown to her.
Wendy