here is the problem with second hand information...one thing gets said and everything after that quotes it. Example, the letters on the Ann’s uniform indicating a school in Lebanon.
So I dug up the actual text. He references the wife “Doris” for the incident. Of course, it could have happened at any time.
I was glancing through the info quickly and noticed a mention of meeting up with a guy from Seattle that was visiting Hawaii. The man from Seattle was part of a swingers club.
You are a little light on sources, and I find it difficult to follow.
The KEYWIKI link to Frank Marshal Davis gives you his entire history, it’s from the research website of TREVOR LOUDON.
FMD came to Hawaii from Chicago in 1948.