Thankyou. I believe Thomas is on the first census return you showed, at Oakwood. He was born in 1836 as his wedding to Sarah Wait shows the follwing
Record_ID: 13664
Entry_Number: 193
Year: 1856
Month: May
Day: 2
Grooms_Surname: JAMES
Grooms_Forenames: Thomas
Grooms_Age: 20
Groom_Condition: Bachelor
Grooms_Occupation: miner
Grooms_Residence: Newnham
Grooms_Fathers_Surname: James
Grooms_Fathers_Forenames: Richard
Grooms_Fathers_Occupation: miner
Brides_Surname: WAIT
Brides_Forenames: Sarah
Brides_Age: 20
Brides_Condition: Spinster
Brides_Occupation:
Brides_Residence: Newnham
Brides_Fathers_Surname: Wait
Brides_Fathers_Forenames: Samuel
Brides_Fathers_Occupation: labourer
Licence_or_Banns: Banns
Date_of_Banns:
Signature_or_Mark: Both mark
Witness_1: Mark of Samuel Wait
Witness_2: mark of Charlotte Bedney

Married at Newhnam.

I believe this is Thomas as he and Sarah are shown as parents of Margaret James , my gg grandmother.