[78-L] Who is Jack Frost at RCA Victor?

[Clifford Bolling]

I was looking through an old collection of records, a few of which make reference to Jack Frost at RCA Victor in Los Angeles (621 So. Hope St, Los Angeles, 14, Calif.) c.1947.  Here is a link to see the items.
 
http://78records.cdbpdx.com/SRTJF/
 
Any ideas about who this person is?
 
Thanks!  Cliff