This is:

Ted Mack's Birthday

Ted Mack was the host of the Original Amateur Hour.

Could be a good day to do a new caller dance. Or give dancers a chance to try a singing call (with a little warning, of course).

Lorne Greene's Birthday

Lorne Greene was an actor, probably best known for Bonanza (at least, that's what I think of when I hear the name).

There's a singing call version of the Bonanza theme song (which surprised me, because I didn't think the song had any words except "Bonanza"). I use the record for patter, but today might be a good day to try it as a singer. Here are some lyrics. BTW, Lorne Greene did a recording of the song, as well as playing patriarch Ben Cartwright.

Moe Bandy's Birthday

Moe Bandy is a C&W singer. He currently has a show in Branson.

There's a singing call version of the Moe Bandy/Joe Stampley song, "Holding the Bag".