and here is what I found about re the "3 Amigos" and the very early days of Dronge's fledgling Guild Guitar company idea:
It all began in a 1,500-square foot loft in New York City during October of 1952. The location was strategically placed in between two lucrative communities to the forefront of this new guitar company with their target audience. The experienced craftsmen who were working at the nearby Gretsch and Epiphone factories, as well as a community or top jazz guitarists in New York, frequented the area at the time.
Guild hired some experienced craftsmen to design and produce the new, original Guild Guitars, and the owners used their connections with recording artists to receive valuable testing and professional insight on creating the perfect guitar. Because Guilds are made to be played, as their motto, the guitars needed to be perfect for the average player and perfected to meet guitarists needs.
Only a year into the company’s beginning, Mann left the company to Dronge. Although their partnership dissolved, Dronge was as determined as ever to transform his dream into a reality. He began to seek out better craftsmen when he found that the answer lies in men such as the “Three Amigos,” who helped make Guild Guitars what they are today.
Gilbert Diaz, who has extensive experience with Gretsch, Carlo Greco, a classical guitar craftsman, and Fred Augusto, a finishing specialist, came on the scene to make Guilds the best they could be. These men are alone responsible for crafting more than 25 years of Guilds and perfect the guitars.