Mysteries of the Masonic Castle | Ross Eric Gibson, Local History
"In 1887 a mysterious castle-like building was constructed on Pacific Avenue, at the head of Walnut Street," writes Ross Eric Gibson. "The building's architect was the popular Charles Wellington Davis, who had designed Santa Cruz landmarks like Knight's Opera House, and F.A. Hihn's Mansion (which would became City Hall)."
Source: santacruzsentinel.com