The Moule’s opened their first glass shop in 1949 in Grass Valley, California. Grandpa William Moule Sr., along with his wife Marge and their first three children, purchased the Grass Valley shop after his return from WWII as a P.O.W. Bill & Marge eventually had 12 children, nine boys and three girls. All of the men grew up working in the glass industry, and today, several of them own and operate their own glass shop. Members of the Moule's family currently operate five shops throughout Northern California: Moule’s Paint & Glass in Grass Valley, Moule’s California Glass in Redding, Moule’s Tehama County Glass in Red Bluff, Moule’s Foothill Glass in Auburn and Moule’s Elk Grove Glass in Elk Grove.