John was a Malster on his marriage record of 1826, and on Elizabeth's baptism of 1827. Another John Eddowes from Wrexham was also a Malster (see 1851 Manchester census).
An older John Eddowes had the Tannery in the Beast Market by the Old National Schoold. It was formerly held by William Poynton, tanner, and after by Mr Walter Jones.; Died Nov 19 1799, and was buried at Marchwiel (from Wrexham Parish History).
In 1827, when Elizabeth was baptised, the family were at Bank Street, Wrexham. They were also at Bank Street when the twins were born, this time John shown as a Carrier. Must be the same John, as same adress.
In 1835, when Esther was baptised, John was a farmer at Common Wood.
In 1851 John (55, a Coal Jagger) was with his second wife, also Mary (47), with Children Edmund, Esther, John, Thomas, Lydia, William and Mathew. Elizabeth and George had already left home and married.
Mary (John's wife) was recorded as a Farmers Widow in 1861, so John must have been a farmer earlier in his life.
Mrs Eddowes and Mr William Owen Eddowes held land and a tannery adjacent to the Beast Market (before 1896, sold in 1824), so may be a parents or close relatives.
In 1836 Esther, daughter of John and Mary, Farmer at Common Wood, was baptised.
According to the births of the children, the family moved from Holt to Wrexham about 1839-40. Unfortunately, there are no Census records for Wrexham 1841 that have survived .