I am researching Harris Wolfe Jeretzky who died 1847 Manchester, England. It is thought he was born in Prussia at the end of 18th century or the beginning of the 19th century. He had 3 children by a Welsh woman named Elizabeth who was born at Usk, Monmouthshire, Wales. The names of the children are George Harris Wolfe Jeretzky (b. 1829), Mary Jeretzky (b.1830) and Rosetta Jeretzky (b.1833). All children were born at Swansea, Wales. It is not definitely known Harris was Jewish but I have come across the first name Harris when researching other Jewish families.
What I am looking for is the ancestors of Harris and where he was born.
Any help with this research would be much appreciated.
Thanking you in anticipation.