Prior to the arrival of the Humphrey Millennium, Thomas was building in a more traditional style, and many of his early instruments were based on Hermann Hauser guitars. Gradually, Humphrey found ways to combine the traditional design with more power, a faster voice and a huge palate of timbres. These are also considered to be a very important guitar for the collector who wishes to completely represent the history of American guitar making.

Sadly, Thomas passed away in April 2008