Marshall was born in Stark, MN, and was raised in Minneapolis from age five with his brothers and Elaine.
He graduated from South High, then received his Law degree from the YMCA College of Law (now William Mitchell College of Law) in 1932. He was admitted to the Minnesota Bar in 1933, and practiced law with his father Swan Sigford until 1957, when he was appointed Deputy Examiner of Titles for Hennepin County. His law career was interrupted by the 3½ years he served as a naval Photographer’s Mate during World War II. Marshall often joked that the Navy told him they already had plenty of attorneys, but really needed good photographers. Some of his black-and-white works are part of the permanent collection at the Minneapolis Institute of Arts.
He was appointed Examiner of Titles & Torrens Referee in 1967, and served until he retired in 1976. He was Chairman of the Real Property Section of the Minnesota Bar 1968-69, and Past President of the Question Club.
Marshall loved fishing, the out-of-doors, and relaxing at his cabin “up north.” He was a 40+ year member of the Masonic Lake Harriet Lodge A.F. & A.M, and one of the first Aqua Jesters for the Minneapolis Aquatennial. Marshall was an accomplished fencer and rose grower. He travelled extensively until age 91; Hawaii and Florida were his favorite places.
He was a devoted husband and family man who enjoyed his extended family of sons, daughters, grandchildren, great-grandchildren, nieces and nephews.