The Demo "Our Love" which
FS did with the Frank Manne orchestra in 1939 was actually a record and was the first I believe. The songs "Shine' and 'Aching Heart" while made earlier (1935) were not actual recordings but were taken off the air. Splitting hairs maybe but true. Then of course "From The Bottom Of My Heart" and the flip side "Melancholy Mood" were the first 'official' recordings
FS ever made, in 1939.