Collection
- Yancey Family Papers, 1791/18732
- Yancey Family Papers, 1808/19122
- Yates County, New York, docket book and unrelated legal manuscripts, 1793/19221
- Yeaman and Walker Family Collection, 1836/1937, bulk 1850/19101
- Young Men's Christian Association Records, 1867/19411
- Young Men's Christian Association of Alexandria, Virginia ledger, 1865/18721