The Francis X. de Neckere, SJ Papers contain de Neckere's first vows as well as a handwritten volume of meditations likely written while at Conewago (1849-1879).
The John Carroll, SJ Collection contains original and transcribed correspondence; two religious manuscripts; biographical notes and news clippings; and miscellaneous documents related to the first Roman Catholic bishop in the United States and the first archbishop of Baltimore. Of note are transcriptions of letters exchanged with Fr. Charles Plowden in folders 1, 2, and 6.