It looks like a couple of mis-merges along this branch have left him (Isaac) with 3 'William' fathers, each with different dates... and two mothers.
Resolving this may help also with checking the reality of whether William Chandler, of Halifax County's 3 current wives are accurate (maybe one or more belong with the 'other' Williams).
Just wondering, Private User, why you chose the spouse "Judith" to edit into "Elizabeth of Virginia" ... and 'throwing away' the other information in that profile (it is actually still in the Revisions list).
Could "Judith" have been the spouse of a different William Chandler that got mis-merged?
Where is the source for your changes?
Your assistance is appreciated, but it is helpful if the changes are "attributed" ... and that other information is not "lost" in the process which might help to further untangle the relationships.