I'm guessing that the first baptism in the post directly above should read 1760, not 1860?
I'm trying to fill in a few gaps here. I can see a marriage bond for Joseph HARTHILL and Elizabeth Kenterdine, dated 1779. Joseph was a locksmith of the parish of St Mary in Stafford (the town), and a widower, and the marriage took place in St Mary, Stafford. Joseph made his mark; the bondsman was Benjamin Kenterdine. I can't see Joseph's age mentioned but Elizabeth was "21 and upwards".
His previous marriage to Jane, in 1775, makes no mention of the age of either party; but if he had been born in 1760 (as per the baptism), he would have needed permission to marry, and there's no mention of that either. He was of the same Stafford parish then too. Name spelled Hartall that time.
I looked for children in case there were any hints with unusual names there but it seems not!
1776 - a daughter Mary (mother Jane)
1777 - Jane (mother Jane)
1780 - Joseph (mother Elizabeth)
1786 - Hannah (all in St Mary, Stafford)
Mary's is the first baptism I can see with surname H*rt*l at this church.
There's a burial in this church for Elizabeth Heartall, widow, age 70, of Stafford, on 9 July 1824. (so suggested yob 1754). Joseph Hartall Senior was buried (from the workhouse) on Dec 31 1814, age 69; so suggested yob 1745.
Searching for poss baptisms in the range 1740-1750 throws up just 5 across the country, of which 3 are in the midlands - 1743 (Dudley, parents John and Mary), 1745 in Birmingham (no family details) and 1748 (Birmingham, father George).
Can I ask what the Leicestershire connection is, given that this is the Leic board?