both of whose

16:24 May 12, 2019 

Thank you, Björn and everyone who offered a response. This is one sentence that appears in a much larger document in which a certain format is being employed throughout the text, so I need to stick to the parentheses for that reason. The Oxford comma is also used throughout the document as part of the overall style of the work, but I agree that the punctuation here made things awkward, so I need to look at things more closely to see if I can reverse the order of the names or do something else to solve that issue. I usually use "born to" (as suggested by Lincoln), so I may revert to that as well. I like the Ayn Rand example you gave, though; it is funny.

14:37 May 9, 2019 

Are you an avid defender of the Oxford comma? AP doesn't like it, for the most part, and it makes the sentence more confusing than it needs to be, IMO.

One popular online example where the Oxford comma is (kind of) needed:
"To my parents, Ayn Rand and God."

In your sentence, however, it has the opposite effect. You say "George, and Bob" but continue with "both of." Do you see what I mean?

I guess I'm making pretty much the same point as Phil.

And why do you need the parentheses at all?

He had one son, Fred, with Mary Smith and two sons, George and Bob, with Barbara Applebee.

Or similar.

E.g.:
https://www.geni.com/people/William-de-Ferrers-4th-Earl-of-D...

Or did I misunderstand something?

Best wishes