I can probably provide some info on Jehu's family, but it would be of no help. I CAN tell you John WILLIAMS is NOT the s/o Jehu, as there is only abt 3 yrs difference in their ages, and 2 yrs difference in their marriage dates.
Since John named his 1st son Jacob, it would not be out of the realm of things to consider this is also John's father's name.
Other than marriages for John's younger ch, I found nothing. Have you done any research yourself...courts, libraries, etc?I noted you posted this same query numerous times over the yrs.