Typed letter from Charles O’Connor to Charles F., Sr., listing a number of books that contain Brush genealogy that Charles Brush might be interested i Show moreTyped letter from Charles O’Connor to Charles F., Sr., listing a number of books that contain Brush genealogy that Charles Brush might be interested in. Charles O’Connor is a rare book dealer and genealogical historian. Charles F. Brush, Sr., Papers Series 1: Correspondence Subseries 1: Family and Personal (1889-1929) Box 2 Folder 9 Show less