Bibliography
- "Annals of Pennsylvania", Hazard 1850
- "History of Delaware County", Dr. George Smith 1861
- "The Life of John P. Crozer", J. Wheaton Smith, D. D. 1868
- "History of Chester County", Futhey And Cope 1881
- "History of Delaware County", Ashmead 1884
- "History of Upland" 1683-1969?
- Published on the 100th Anniversary of the Incorporation of the Borough 1969
- "The Crozers of Upland", David Macqueen 1982