Rigg was born on April 5, 1878, in
Stratford, Ontario. His parents were William Rigg and Arabella (
née Harvey) Rigg, immigrants from Scotland and England, respectively. With
Roland Vantyne, Rigg designed many buildings in Spokane and
Tacoma. He designed two buildings on the campus of
Washington State University: Abelson Hall with Vantyne in 1935, and Engineering Laboratory Building in 1942. Over the course of his career, he designed hundreds of buildings, in multiple architectural styles. Rigg was married to Mayme Ethel Beck. They resided in Spokane and had a daughter together. He was also a
Freemason. He died on February 18, 1959, aged 80, in Spokane. ==Works==