APS Member No. 2557. He worked for his father's firm, John W. Scott & Co., and later on Scott & Company, and when it was sold worked for the corporation Scott Stamp & Coin Company, Ltd. He left Scott Stamp & Coin Co. Ltd, founded Walter S. Scott & Company, a stamp dealer and auctioneer. He worked for Merwyn -Clayton, anf Merwyn Sales Company until they were bought by Anderson Auction Company in 1915. Immediately afterward Scott joined partnership with Marion T. O'Shaughnessy in the firm of Scott & O'Shaughnessy. 

He died on October 29, 1948.