1940's Mystery Autographs - Help Needed - 13 Total - Likely Entertainment

[ATP]

Hi All,
I recently purchased a collection of about 200 autographs housed within three small books. I have identified almost all of them but there are thirteen I am stumped on. Some seem fairly simple but I can't seem to get them, and hoping someone here will recognize them. I don't want to neglect any because there are quite a few big names in the collection (Frank Sinatra, Judy Garland, Lou Costello, Errol Flynn), and I missed a Charlie Chaplin on my first look through that was in there. There are some spouses of movie stars as well so that could be the case with some of these. Any help is much appreciated, and as usual if anyone ever needs help with autographs themselves they can PM me any time. I'll update the thread if/when some are identified.

1) ?
2) Arline Judge
3) ?
4) Miles Mander
5) ?
6) Ken Niles (thanks Michael)
7) ?
8) Phil Baker (probably, thanks Steve)
9) ?
10) I think this one is Phyllis Brooks
11) ?
12) Edmond O'Brien (Thanks Kevin)
13) Acquanetta