I am a descendant of William Congleton's oldest son, John, probably by a first unknown wife. Jane being the second wife and mother of his other 5, possibly 6 children.

Unless circumstances are unusual, I usually do not research the families the siblings married into, other than to know who the husbands and wives were.

I suggest you do basic census research for families living near the Congletons in Guernsey county for similar sounding names. At that time, spelling was quite fluid, sound was more consistant.