The brother of Ernest Holmes, Fenwicke is widely recognized for being an important factor in the establishment of Religious Science and the founding of the United Centers for Spiritual Living.
A teacher at the school urged Fenwicke to attend Colby College in Waterville, Maine, where he graduated from with a Bachelor of Arts degree in 1906.
Soon after the brothers founded Uplift, a magazine somewhat critical of traditional New Thought, and began speaking throughout the Los Angeles area.
According to Washburn and deLong's Book "High and Low Financiers" [6] Fenwicke Holmes was investigated by the Securities Bureau of New York during the 1920s for various stock swindles, mostly relating to defunct or worthless mining companies, and eventually indicted.
Then, Fenwick and his wife moved to Santa Monica, California, where he became president of the International College of Mental Science and continued lecturing.
In the 1950s, Holmes collaborated with Dr. Masaharu Taniguchi in founding the Japanese New Thought organization Seicho-No-Ie, and co-authored its guiding book, The Science of Faith.