This is Ina Rae Hutton and her Melodears. That is all I am certain of- the video I found had no info. I believe Ruth was with Ina Rae from 1937-1939 and the video has a fantastic close up of her for a short solo.
"I'll Never Smile Again" Tommy Dorsey with Frank Sinatra and the Pied Pipers from the film Las Vegas Nights.
Tony Martin "My Next Romance".
"Funny Little Pedro" Jo Stafford with the Tommy Dorsey Orchestra. I debated about including this because it is super racist, but I believe it's important to tell the whole story, warts and all.
"Too Beautiful to Last" by Dick Jurgens and his Orchestra.
"More than Once" by Stuart Wade
"It's Raingin Memories" by Barry Wood and the Wood Nymphs with Orchestra.
"I Don't Care What You Think of Me As Long As You Think of Me" Dick Haymes with the Tommy Dorsey Orchestra.
"More Than Anything in the World" by the Four Vagabonds with Janette.
"My FIrst Love" Jimmy Dorsey and his Orchestra.
"My Love Came Back to Me" by Gordon Jenkins and his Orchestra.
"I'll Never Smile Again" Bill Evans Quintet from the album Interplay.
"Put Your Dreams Away" Frank Sinatra from Sinatra's Sinatra.