The recording runs almost 5:00 long, and it has its share of goofs, but the singer sings on. There is absolutely no information regarding who the singer is, what the name of the song is, or even if it was made in Colorado. The disc shows "3628," along with the Presto logo. The fantastic Phonozoic website shows that this most definitely a 1940s-era recording.
I'm taking a stab in the dark that someone on here might be able to solve the mystery.
Yes, I did an exhaustive search on some of the lyrics, and came up empty.
Presto sold lots of blank discs, as well as recorders, of which amateur singers used to make demos, or gifts for family and friends. I'm idly wondering if this might be the case here, and we will never know who this mystery singer is.