 In 1889 Brackett was a founder, with Sidney Rickard and George F. Harvey, of the G.F. Harvey Company, a pharmaceutical manufacturer in Saratoga Springs, and was a director of the company.In 1901, Edgar Brackett founded the Adirondack Trust Company and remained as president until his death in 1924.In 2013 a large cache of Senator Brackett's personal records and correspondence was discovered concealed by a dropped ceiling in Saratoga Springs City Hall, where he had a law office.