1949 Entertainment Autographs - Help Needed with 18 Mystery Signatures

[ATP]

I finished up going through an autograph collection of about 325 signatures this week, and am left with 18 unknowns. They all would have been signed in either 1949 or 1950, and acquired in the New York area. Most of the collection consisted of movie stars, TV stars, broadway, vocalists, big band, and a few other prominent New York people...so really it could cover any genre from the era. I would say the majority of the autographs were very well known folks from movies who were appearing in early TV.

I would love it if any of the autograph folks here who dabble in entertainment autographs could glance over these scans and see if they recognize any. I have been over each of them individually for quite some time and am stumped, so hoping to get a different perspective on them and see if I can get any leads into who they are.

Thanks everyone for taking the time to look. As always, if anyone ever needs help with an autograph you can PM me anytime.

Update: Got some positives ID's coming in from a few folks here and a friend offline, will update them below:

Scan #1
???
Louise Platt
???


Scan #2
Don Budge
Lon McCallister
Al Ramsen
???

Scan #3
???
???
???


Scan #4
????
????
Nip Nelson
Charlie Shavers


Scan #5 -
Marc Plant
Michael Duane
Rose Perfect


Scan #6
???