Semie Moseley, Founder of the Mosrite Guitar Company, Posing With the First Mosrite Triple-Neck, ca. 1955

Semie Moseley (June 13, 1935 – August 7, 1992) started playing guitar in an evangelical group in Bakersfield, California, at age 13. He and his brother Andy experimented with guitars from their teen-age years, refinishing instruments and building new necks.

Semie began building guitars in the Los Angeles area around 1952 or 1953, apprenticing at the Rickenbacker factory. There he learned much of his guitar making skills from Roger Rossmeisl, a German immigrant who brought old-world luthier techniques into the modern electric guitar manufacturing process. One of the most recognizable features on most Mosrite guitars is the “German Carve” on the top that Moseley learned from Rossmeisl. During the same time, Moseley apprenticed with Paul Bigsby in Downey, California, the man who made the first modern solid-body guitar for Merle Travis in 1948, and who invented the Bigsby vibrato tailpiece, which is still used today.

In 1954, Semie built a triple-neck guitar in his garage (the longest neck was a standard guitar, the second-longest neck an octave higher, the shortest was an eight-string mandolin.) He presented a double-neck to Joe Maphis, a Los Angeles-area TV performer of country music. He also made several similar twin-neck guitars (with the performer's name inlaid into the neck) for Maphis’ protegé, the child prodigy guitarist Larry Collins, who still owns his three Mosrite twin-necks.

By 1956, with an investment from Ray Boatright, a local Los Angeles Foursquare Gospel minister, Semie and his brother Andy started their company, Mosrite of California. In gratitude to Reverend Boatright, Moseley named the company by combining his and Boatright’s last names; the name is properly pronounced MOZE-rite, based on the pronunciation Semie Moseley used for his own name. Semie, who built guitars for the L.A.-based Rickenbacker company, told his co-workers that he was making his own product and was fired by Rickenbacker.

When they began, their production was all custom, handmade guitars, built in garages, tin storage sheds, wherever the Moseleys could put equipment.

In 1959, Andy moved to Nashville, Tennessee, for a year to popularize the Mosrite name and sold a few, including to Grand Ole Opry entertainers and road musicians. Andy said: “And that’s how we kept the factory going at the time: custom guitars.”