Proceedings of the 15th (1915), called annual meeting.
24th annual convention held in Jan. and 25th annual convention held in Dec. of 1924.
Microfilm. no. 14 (1914)-no. 30 (1930). Bethlehem, PA : Preservation Resources, 1997. 2 microfilm reels : negative ; 35 mm. USAIN State and Local Literature Preservation Project: Wisconsin.