The Father John G. Hacker collection, 1920-1950, contains letters and biographical information about Father Hacker, incoming letters to Father Hacker from friends and Maryland government officials, reviews of his "Catholic Hymnal" book, and pages of music he composed or used for religious services. Father John G. Hacker, S.J. was born August 21, 1877 in Buffalo, New York. He was a celebrated German professor and music prefect at Loyola College until his death on September 11, 1946.

Father John J. Griffin, born in 1859, was a Catholic priest and academic. This collection consists mainly of Rev. Griffin’s Camp Namaschaug documents, including business correspondence, bills, receipts, financial information, booklets and advertisements, and legal documents.

The Nicholas Varga papers, circa 1950-2005, document the life, career, and publications of Loyola history professor and archivist Nicholas Varga. Nicholas Varga (1925-2005) was a decorated Army veteran, archivist, and historian specializing in the history of Maryland and politics of colonial New York.