Trinity Church, Philadelphia - Rev. J.C. Helbron to Bp. Carroll and his answer, 7p., 1789 August 18, MABA 8.11b/R.01. Archdiocese of Baltimore Collection, ABA. University of Notre Dame Archives. https://archivesspace.library.nd.edu/repositories/2/archival_objects/1628394 Accessed October 18, 2024.