Michael Faraday - did he have any siblings - who may be an ancestor according to family rumour?

Question

Michael Faraday apparently had a brother-in-law, John Arnold (a definite ancestor) but I don't know if John was married to a sister of Michael's wife or to a sister of Michael.

Answer 1

He was one of 4 children in a poor family. He and his wife, Sarah Barnard did not have children. If you are researching family history, start from facts you know, and not from possible ancestors.