well, the first 45s I had..(bought for me) were "Rudolph the Red Nosed Reindeer" by Gene Autry and "Blackball Ferry Line" by Bing Crosby (about 1949)

Later, my first LPs were "It's In the Book" by Johnny Standly!! and an LP by Rafael Mendez and his 2 sons....trumpet players extraordinary

in folk it was Burl Ives "Wayfarin' Stranger" and "The Weavers at Carnegie Hall"