It would seem the Thomas Proud I was looking for was born in 1859 was the son of Ann Proud (singlewoman)D of Ralph Proud and Ann Garvan. I have been able to trace Ann (his mother) who later married Jeremiah Best and they moved to Middlesbrough. I have traced Thomas from the 1881 Census you were right he was in Guisbrough. I can't trace any sign of Thomas from the 1871 census and he dosen't seem to be living with his mother. My sources are
1881 census RG11/4844 folio 65 pg 21. He lived in Morton Grange Guisbrough.
KMS CD'S of parish register marriages 1885 says Thomas Proud aged 25 labourer of KMS(son of Ann Proud singlewoman) to Mary Parker (d of Samuel Parker) witnesses Mary Leng and James Leng.
I know that Mary Parker was my great grandmother but I would like to know where Thomas lived in the first years of his life. I can't locate him with relatives. I'm hoping you or anyone else may be able to help. thanks Lynn