List of Inventories and Finding Aids
- MS-001: Wilton C. Dinges Collection (H.L. Mencken Collection)
- MS-002: Franklin O. Loveland Papers
- MS-003: Amos E. Taylor Papers, Class of 1915
- MS-004: Frank H. Kramer Papers, Class of 1914
- MS-005: Charles H. Huber Papers, Class of 1892
- MS-006: Philomathaean and Phrenakosmian Societies
- MS-007: Jerry Spinelli Papers, Class of 1963
- MS-008: William H. Young Papers
- MS-009: Ambrose Henry Hayward Papers
- MS-010: Linnaean Assocation Papers
- MS-011: Lewis Tway Collections
- MS-012: Robert Weidensall Papers, Class of 1860
- MS-013: Karl Fredrich May Papers
- MS-014: Thomas Cheshire Papers
- MS-015: Frederick H. Kronenberger Papers
- MS-016: Edmund Burke Papers
- MS-017: Melvin R. Hamsher Papers, Class of 1904
- MS-018: Robert W. Koons Papers, Class of 1943
- MS-019: Donald F. Lybarger Papers, Class of 1919
- MS-020: John H.Warner Papers
- MS-021: John C. Tidball Papers
- MS-022: David McConaughy Papers
- MS-023: Samuel S. Schmucker Papers
- MS-024: Major General Charles A. Willoughby Papers, Class of 1914
- MS-025: J. G. Patterson Papers
- MS-026: Diary: Aide de camp to General John E. Wool
- MS-027: Michael Moyer Papers
- MS-028: Lt. Daniel Chisolm Letters
- MS-029: Letters to Biglerville Community
- MS-030: Richard Schade Letters
- MS-031: Chan F. Coulter Letters
- MS-032: The Toomey Family Papers
- MS-033: Ralph Burton Papers
- MS-034: H.L. Baugher Family Papers
- MS-035: John A. Himes, Class of 1870
- MS-036: Radical Pamphlets, 1965 - 1975
- MS-037: Richard A. Arms Papers
- MS-038: Pen and Sword Society Papers
- MS-040: Woman's General League of Gettysburg College Collection
- MS-041: Thomas Meiser, Company F, 93rd Regiment Pennsylvania Volunteers
- MS-042: Lt. Sylvester Crossley, 118 Regiment of Pennsylvania Volunteers,
Company H (Corn Exchange)
- MS-043: George Washington Beidelman Collection
- MS-044: Stephen H. Warner Southeast Asia Photograph Collection
- MS-048: World War I Service Questionnaires
- MS-049: The Papers of Jacob M. Yingling, Class of 1952
- MS-050: Robert B. Arms Collection
- MS-051: The Letters of Richard A. Moore to his Wife During the Vietnam War
- MS-052: The Papers of the Stephen H. Warner Committee
- MS-053: Charles D. Ryan Collection
- MS-054: The Papers of David Hedrick on the Stephen H. Warner Exhibit
- MS-055: The Papers of the German Literary Society
- MS-056: World War II German Prisoner of War Collection
- MS-057: The Papers of Donna O. Schaper, Class of 1969: The Gettysburg Years
- MS-058: Nancy Springer Papers, Class of 1970
- MS-059: The Papers of Charles H. Glatfelter (Class of 1946)
- MS-060: Henry N. Bemis Diaries
- MS-061: Charles A. Rubright Collection
- MS-062: George Hay Kain Papers (Class of 1897)
- MS-063: Melancthon E. Washburn
- MS-064: Henry T. Bream Papers
- MS-065: Lincoln Fellowship of Pennsylvania Collection
- MS-066: Dissertation of George S. Warthen - "A Study of the Rolliad"
- MS-067: The Papers of Robert Bell Bradley
- MS-068: Henry P. Clare Letters
- MS-069: The Papers of John W. Vannorsdall
- MS-070: The Papers of Philip M. Biklé and Family
- MS-071 : Mamie Eisenhower Letters
- MS-072: Adin B. Thayer, Co. B, 16th Maine Volunteer Infantry
- MS-073: Alexander C. Barr, Battery F,3rd Independent PA Light Artillery
- MS-074: Thomas B. McGaffick, Co. F, 101st Pennsylvania Volunteer Infantry
- MS-075: Henry W. Siebert, Company E, 16th Pennsylvania Volunteer Cavalry
- MS-076: George C. Wynkoop, 2nd Brigade, 2nd Division, Dept. of Pennsylvania
- MS-077: Gladys Kennedy World War II Letters
- MS-078: John B. Young, Company H, Pennsylvania 5th Artillery Regiment
- MS-079: Captain Benjamin F. Lee Collection regarding 28th Pennsylvania Infantry and John W. Geary
- MS-080: The Francis A. Shearer Collection
- MS-081: Leahy Family Correspondence; 1894-1901, Gibraltar
- MS-082: Capt. Russell Miller and Claudia Lewis Miller Correspondence, 1916-1919
- MS-084: The Letters of Gerald Koster, World War II
- MS-085: The Mary Dolheimer Collection of Women's Commission Papers (1985-2001)
- MS-086: Kathrine Kressmann Taylor (Rood) Papers
- MS-087: Phi Sigma Kappa, Rho Deuteron Chapter
- MS-088: Dillon Anderson papers
- MS-089: The Yarnell Collection
- MS-090: Interfraternity Council and Pan-Hellenic Council records
- MS-091: Women's Student Government papers
- MS-092: Phi Kappa Psi, Pennsylvania Epsilon Chapter
- MS-093: John Henry Wilbrand Stuckenberg papers
- MS-094: The Letters of John Duttera, World War II
- MS-095: John Wright, World War I letters
- MS-096: John W. Miner letters
- MS-097: Papers of Robert B. Fortenbaugh
- MS-098: Eisenhower letters to Col. and Mrs. Sam White
- MS-099: Robert H. Fryling papers
- MS-100: Reuel Williams Waters, 1st Battalion, Main Light Artillery
- MS-101: Miscellaneous 18th and 19th Century British Letter Collection
- MS-103: Jes Jerry Jessen World War I Letters
- MS-104: World War II Letters From Carl G. Ohmer and Richard E. Ohmer
- MS-105: John L. Barry Civil War Letters
- MS-106: Morris, J.G. and Morris-Hay Family Diaries, 1827-1890
- MS-107: Michael Jacobs Collection
- MS-108: Louise Ramer, Class of 1929, Chi Omega Collection
- MS-109: Dwight D. Eisenhower Appointment Books, 1961-1967
- MS-110: Fannie Hurst Newsletter Collection
- MS-111: Eisenhower Society papers
- MS-112: Deborah H. Barnes papers
- MS-113: Thomas Yost Cooper papers
- MS-114: Elizabeth Peeling Lyon papers
- MS-115: Notarangelo Collection of Louis A. Parsons papers (1895-1926)
- MS-116: Diary of Corporal Robert Ridge, 95th Illinois Volunteer Infantry
- MS-117: Papers of George H. Sweet Jr., '42
- MS-118: Letters Solicited by Jerold Wikoff for Gettysburg Alumni Magazine
- MS-119: Glatfelter Collection of Pennsylvania Hall Research
- MS-120: Naviglia-Woncheck World War II Letters
- MS-122: Civil War Institute
- MS-123: Robert D. Hanson papers
- MS-124: Samuel Simon Schmucker Bicentennial Celebration 1999
- MS-125: Samuel E. and Clara Turner papers, 1861-1865
- MS-126: Anita Faller Alford Collection
- MS-128: Papers of William C. Darrah
- MS-129: Burlew Letters