Gilbert MacMaster papers (HC.MC.1016), Quaker & Special Collections, Haverford College, Haverford, PA.
Gilbert MacMaster papers (HC.MC.1016), Quaker & Special Collections, Haverford College, Haverford, PA. https://archives.tricolib.brynmawr.edu//repositories/5/resources/446 Accessed April 19, 2024.
