Browse Items (1 total) Tags: R.B. Knop Browse All Browse by Tag Search Items Sort by: Title Creator Date Added R.B. Knop - Little Girl This is the glass negative of R.B. Knop's little girl. The photo was taken by Charles Wasson of Wasson Studios in Decatur, IL in the early 1900s. Tags: c. 1910, Charles Wasson, Charles Wasson Photo Collection, child, Decatur IL, girl, Glass Negative, little girl, negative, R.B. Knop, Wasson Studios Featured Item Photograph of 1148 W. North St. Photograph of 1148 W. North St. taken in 1950.