found: Government ownership in production and distribution, 1895:t.p. (Walter Vrooman) facing t.p. (Rev. Walter Vrooman)
found: LC, 5 Sept. 2007(hdg.: Vrooman, Walter, 1869-)
found: Vintage Kansas City WWW Site, 5 Sept. 2007:Men Who Made Kansas City page (Walter Vrooman, born 8 Jan 1869; Macon, Missouri)
found: Library of Congress Manuscript Division for the Carl Schurz Vrooman papers, 1872-1975(Walter Vrooman; brother of Carl Schurz Vrooman)
found: WWW Ancestry.com, viewed July 10, 2012(Walter Vrooman; Walter Watkins Vrooman; b. 1869; d. 1909; brother of Carl Schurz Vrooman)
found: Journal of American History, vol. 55, no. 3, Dec., 1968p. 646 (Walter Vrooman; son of Hiram Perkins Vrooman; clergyman; professional agitator; purged from Socialist Labor Party, 1889; helped to organize Union for Practical Progress; co-founder, Ruskin Hall labor education movement in England)