Walter Cannon was born on July 5, 1888 in Pinto UT. His wife Leah Sullivan was born on May 25, 1889 in St. George. Cannon married Leah on June 9, 1909 in St. George.
He was the Postmaster in St. George, and he was also a realtor and banker. He was the Second Counselor to President Joseph K. Nicholes in the St. George Stake Presidency.
Walter Cannon died on August 15, 1957.