I'll do Wild Nights, Hot and Crazy Days first, because that's my signature story:
The story got its name from an old 1980's song, Wild Nights, Hot and Crazy Days. This song was my anthem as a teenager, and the title perfectly describes how I remember those times.
The song:
The characters themselves are all real people, but I changed almost all the names. In order to keep myself from forgetting the fake names and who they applied to, I used the same letter to start the fake name as the real name had (for example somebody named Jason may have had his name changed to Jonathon - these names were not used in the story, I'm merely using them as an example here). The only names that were not changed were those of my family, myself, and one character from early in the story who had a name very similar to mine (pronounced the same, but spelled differently). I did not change this name because I thought it was cool.
Most chapters get their names from music - either a song title or a song lyric. For example one chapter is entitled "Something's happening here (what it is ain't exactly clear)", which is a lyric from a song by Buffalo Springfield - it is actually the first words to the song "Stop children, what's that sound". Another is called "Losing My Religion", which is a song by R.E.M.
Now, for Finding Daecon's Way:
The story title also comes from a song, but not quite as directly as WNHCD. Finding Daecon's Way gets its name from a song by Rush: Finding My Way.
The song:
The characters got their names in different ways. Daecon, the main character, was originally going to be called Hunter, and indeed a good portion of the story was written before I changed it to Daecon. The file name for my first draft is still called 'Finding Hunter's Way.docx". Owen got his name because I thought Owen would be a good name for a cranky, stuffy middle aged man who could change into a bear. Owen's husband's ancestry is Egyptian but he grew up in Greece, so he has a Greek name (Leander). Their son also has a Greek name (Evander).
For some reason, for the royal family (including Daecon) I decided that all of the characters had to have names starting with D. Daecon's fathers' names are Darion and Dionysius (Dionysius is also Greek). Darion's father (Daecon's grandfather) was named Dontarion. There was a bit of Tolkien influence here - if you've read LOTR you'd often see things like "Gimli, son of Gloin, son of Groin". Similarly, it's Daecon, son of Darion, son of Dontarion.
As with WNHCD, many of FDW's chapters come from music, either song titles or song lyrics.