No, Merle Haggard has never been married to Kris Kristofferson or Robert Duvall, let alone both, in sequence or in parallel.
AP Stylebook, you suck (and not in the good way).
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Notes:
- Yes, they could have solved the problem here by reordering the list, and putting the "two ex-wives" last.
- Yes, sometimes the serial comma can also lead to ambiguity. No rule can supplant the need to write clearly. I'm not arguing for putting the serial comma in every time, just for not banning it outright.
- The online version of the article says this instead:
which eliminates the ambiguity, while still keeping the AP Stylebook's silly rule.Some two dozen additional interviewees — including Kris Kristofferson, Robert Duvall, Keith Richards, Dwight Yoakam, Alison Krauss, John Fogerty, both his ex-wives and several of his children — seem far more impressed with what the musician has done with the cards he was dealt than Haggard is. - I got this from Making Light, which got it from Bruce Baugh.
- Yes, I know no more than five people on here give a flying fling at a rolling donut about fine points like this. If you don't, move on.

