Semie started in the 1950's to build guitars and sell them or trade them to preachers in exchange for just about anything--money, cars, fancy clothes, a place to live, food, etc. In the 1960's and 1970's Semie traveled the gospel music circuit and, well, pardon me for saying--he pimped the heck out of his guitars to the gospel guys! ha ha.
I posted all these before but I'll save you the hassle of looking through my old posts to find these Mosrite-themed gospel LP covers....
And by the way, thanks for posting all these other ones, lots of ones I had never seen before!! Great stuff!
Deke
Sadly I don't have a scanner big enough to scan whole album covers, but I'll add comments:
Little David Smith album cover taken in the early 70's Mosrite factory!

An earlier LP cover of Little David sporting a doubleneck:

An LP Cover of "The Calvary-aires:"

Gospel guitar of Johnny Young:

The Young Trio featuring Reverend Charles Young on the custom-ordered Mosrite Tripleneck:

Semie playing on a 45 by Rev. Buford Dowell:

There are a bunch more I haven't scanned before, including Wendy Bagwell, the Happy Goodmans, the Broome Brothers, etc.
But yeah, as far as Semie was concerned--gospel musicians were the most important to him and he always tried to get them to use his guitars....