little bit more (still trying to use these other artists to date anything, hasn't worked out yet)
here is the label of another Janus release
http://cgi.ebay.com/CONCERT-STEREO-CARMEN-SUITE-JANUS-FST-1001-LP-/280394360152
and it says
Frank L Kaltman Enterprises Newark NJ
and Kaltman is someone who is a bit less obscure, mainly associated with a label named Folkraft, will keep digging...
this seems relevant, Janus was founded in 1958, Kaltman bought these tapes including Lenny Herman records from a company named Livingston Audio Products, Essex NJ...