Information on death certificates has varied over the years but can sometimes throw up some useful bits.
· Name of the deceased, their supposed age at death and occupation
· The cause of death
· Date and place of death
· The informant and their relationship to the deceased
CHILDS ERCALL, SHROPSHIRE BAPTISMS = John & Mary
George 1783, Mary 1785, Thomas 1791
Anne 1793, John 1795, William 1800
John Atkin age 21 (1762) Farmer Marital Status: Unknown
Marriage by License 23 April 1783 Hodnet, Shropshire
Mary Woodhouse age 21 (1762) single
Also recorded at Hodnet, & Woore, Shropshire 25 April 1783
No baptism records for either in Shropshire a few in Staffordshire but not the ares of interest.
A tree on family search suggests John born Shropshire in 1754 parents Edward & Sarah. I do not think that is correct. Atkins and its variations is quite a common name but it is strange not to find any detail, especially in Staffordshire, as regards the marriage it may be that the record has not survived or it may have been a civil marriage, which was not recorded. However I cannot see a clear connection with John to your Thomas.
Colin