Union-Tehama's roots actually go deep into a New England background. Its first charter was granted on January 31, 1849, by the Grand Lodge of Connecticut, on recommendation of Hiram Lodge No. 1 of New Haven, which boasts of being the oldest Lodge in the United States.
When the Grand Lodge of California opened for the first time, on April 19, 1850, it recognized California Lodge No. 13 (now California Lodge No. 1), Western Star Lodge No. 98 (now Western Star Lodge No. 2), and Connecticut Lodge No. 75 (now Union-Tehama Lodge No. 3) as being legally constituted and chartered Lodges of Free and Accepted Masons.
Representatives of these Lodges were then duly authorized and qualified to organize and constitute a Grand Lodge of the State of California.
The name "Tehama" is a word of Native-American origin, and it means "high water, low land" in reference to the overflowing of the Sacramento River.