William Curtis papers (HC.MC.950.052), Quaker & Special Collections, Haverford College, Haverford, PA.
William Curtis papers (HC.MC.950.052), Quaker & Special Collections, Haverford College, Haverford, PA. https://archives.tricolib.brynmawr.edu//repositories/5/resources/1246 Accessed April 19, 2024.
