Letter from William Heathcote De Lancey to William Steuben De Zeng, March 24, 1847
Letter from John Peter De Lancey to John De Lancey, September 22, 1786
Letter from Henry Huber to Elizabeth Caroline De Lancey, June 18, 1852
Letter from Edward Floyd De Lancey to James De Lancey, June 18, 1852
Will of Anne Charlotte McAdam, February 13, 1850
Letter from Caroline Carey De Lancey to John Peter De Lancey, February 1, 1820
Letter from John Peter De Lancey to John De Lancey, August 31, 1789
Letter from William Heathcote De Lancey to Anne Charlotte McAdam, November 19, 1836
Letter from William Heathcote De Lancey to Elizabeth Herbert, May 16, 1859
Letter from Caroline Carey De Lancey to John Peter De Lancey, January 25, 1821
Account of William Heathcote De Lancey, November, 1858
Undated De Lancey family genealogy compiled by William H. De Lancey
Letter from Daniel Coxe to John Peter De Lancey, May 13, 1806
Letter from William Heathcote De Lancey to Edward Floyd De Lancey, September 5, 1861
Letter from William Heathcote De Lancey to Edward Floyd De Lancey, January 7, 1850
Letter from William De Zeng to Josephine M. De Zeng, December 5, 1847
Letter from William Heathcote De Lancey to Thomas J. De Lancey, January 5, 1848
Telegram from William Heathcote De Lancey to Edward Floyd De Lancey, November 15, 1858
Proposal from William Heathcote De Lancey to Hon. James S. Wadsworth, Chairman of Senate Committee on Colleges, February 22, 1858