Browse Items (1 total) Tags: M.O. Whelan Browse All Browse by Tag Search Items Sort by: Title Creator Date Added M.O. Whelan - Girl These are the glass negatives of M.O. Whelan's girl. The photos were taken by Charles Wasson of Wasson Studios in Decatur, IL in the early 1900s. Tags: c. 1920, Charles Wasson, Charles Wasson Photo Collection, child, Decatur IL, girl, Glass Negative, M.O. Whelan, negative, Wasson Studios Featured Item Decatur Public Library Board of Trustees Monthly Meeting, December 21, 2000. Decatur Public Library, Board of Trustees Monthly Meeting 12/21/2000.