Alvernon—Origin of the Street Name
How Alvernon street in Tucson was named is basically a mystery.
Alvernon Drive was completed in October 1911. The best guess for its name origin is that an area real estate firm employed an AL (fred) or AL (bert) Vernon, whose name became attached to the street.
Tucson Lifestyle. "Streetwise and Stravenued." October 1985. Page 94.