Handwritten letter from Katherine to her uncle Charles F., Sr., thanking him for a letter of introduction that helped her and Rob when they went to Sa Show moreHandwritten letter from Katherine to her uncle Charles F., Sr., thanking him for a letter of introduction that helped her and Rob when they went to Santiago and needed something for the ambassador there on their way to Patagonia. Envelope included. Charles F. Brush, Sr., Papers Series 1: Correspondence Subseries 2: Acknowledgments (1921-1929) Box 2 Folder 5 Show less