Good morning Luftwaffle8,
it's cool you knew McCampbell.
This website
http://acepilots.com/usn_mccampbell.html
indicates that he was married only four times.
Should this be corrected or could you imagine he exaggerated his marriage score to become a wedding-ace ? ;-)
Do you know what his "lenghty illness" from which he died, was ?
Kind regards,
Michael