Scope and Contents Article from the Northern Illinois District Supplement, June 1931Article from the Northern Illinois District Supplement, June 1931 Service bulletin: 50th anniversary, 1865-1915 (2 copies - photocopy)75th anniversary booklet, 1865-1940 (2 copies) Service bulletin: 75th anniversary (June 9, 1940) (2 copies) 100th anniversary booklet, 1865-1965 (2 copies) Service bulletin: 100th anniversary (September 12, 1965) (2 copies -...