Browse Items (1 total) Tags: Maria & Cora Browse All Browse by Tag Search Items Sort by: Title Creator Date Added Offenstein Sisters - Maria & Cora These are the glass negatives of the Offenstein Sisters, Maria and Cora. The photos were taken by Charles Wasson of Wasson Studios in Decatur, IL in the early 1900s. Tags: c. 1915, Charles Wasson, Charles Wasson Photo Collection, Cora Offenstein, Decatur IL, Glass Negative, March 10, Maria & Cora, Maria Offenstein, negative, Offenstein Sisters, Wasson Studios Featured Item Bills - August 3, 1972 This is a list of bills for the month of August 1972.