He was the son of John Wendt Westall Jr. He attended Cornwall High School. He graduated from Syracuse University School of Law, and began the practice of law in Syracuse. Later he removed to White Plains, and practiced law in Westchester County and New York City. He married Marion Edna (died 1966), and they had one daughter.
He was a member of the New York State Senate (25th D.) from 1923 to 1934, sitting in the 146th, 147th, 148th, 149th, 150th, 151st, 152nd, 153rd, 154th, 155th, 156th and 157th New York State Legislature.
He was Secretary of the Westchester County Republican Committee from 1945 until his death in 1968.
- History of the Valley of the Hudson (Vol. 5; 1931; pg. 354)
- MRS. WALTER WESTALL in NYT on May 26, 1966 (subscription required)
- WALTER W. WESTALL, REPUBLICAN LEADER in NYT on June 6, 1968 (subscription required)
|New York State Assembly|
William J. Fallon
| New York State Assembly
Westchester County, 2nd District
Herbert B. Shonk
|New York State Senate|
George T. Burling
| New York State Senate
Pliny W. Williamson