Cahill Pharmacy of Janesville Closing Letter. Material: paper. Size: 8 1/2" x 11". Description: white copy paper containing the letter sent to customers and friends of the Cahill Pharmacy, Janesville notifying them of the closing of the store and the merging of the pharmacy with Thrifty White Pharmacy in Waseca, as of March 4, 2014; letter signed by Terry Cahill and Barb Cahill, owners.