Comment by DeweyGill SUBS:
“Gloria Geer” is a pseudonym for Vaughn DeLeath.
“The original radio crooner”
There was an old story in collecting lore that when Lee DeForest brought her into his NYC pioneering radio station 2XG in 1920, it was feared her soprano high pitch would damage the vacuum tubes, so she was talked into singing in a lower voice. This apparently fashioned the crooner style, which influenced singers for decades.