Australian National Antarctic Research Expeditions (ANARE) Club Sir Hubert Wilkins 85th Anniversary Commemorative Postal Cover are three envelopes and a brochure commemorating Wilkins’s landing in the Australian Antarctic Territory. The numbered envelopes contain a stamp from Davis Station, a picture of Sir Hubert Wilkins posing under a painting of himself, and a postage stamp with a picture of the Walkabout Rocks. The envelopes include a card with details about the limited edition envelopes stamped at Davis Station, Antacrtica and a signature from the ANARE Club president. The set of envelopes in this collection is numbered nineteen out of thirty. The envelopes are dated January 8-11, 2024. A brochure included with the envelopes contains excerpts from logs and reports from Wilkins’s landing in Australian Antarctic Territory on January 8-11, 1939.

The Byrd Antarctic Expedition II Collection contains collected materials both from and about Byrd Antarctic Expedition II, some of which date before and after the Expedition. A candlestick from an expedition ship dates from 1884, and the rest of the collection dates from 1928 to 2010, with the bulk of materials dating between 1928 and 1935. The collection includes items such as correspondence from expedition members, artifacts from the United States Ship Bear and the expedition itself, a scrapbook, photocopies of the South Pole Radio News published by the expedition, an account of the trip to rescue Admiral Byrd from Advance Base by a crew member, advertisements by sponsors of the expedition, and postal covers.

The Cartoons and Comics Stamps Collection includes postal stamps featuring popular comic strip characters such as Peanuts, Blondie, Dick Tracy, and others. There are new accessions expected.

The George M. Troutman Papers, dated circa 1928-1935, contain materials created or collected by George M. Troutman that mostly relate to the first Byrd Antarctic Expedition and document Troutman's connection with some of the expedition's members. In particular, the papers document his relationship with Sidney Greason. Materials include correspondence, photographs, and newspaper clippings. Also included are covers, which are self-addressed, stamped envelopes that have been sent through the mail, that Troutman collected during the second Byrd Antarctic Expedition.

The Katharine Byrd and Robert G. Breyer Family Papers on Richard E. Byrd contain correspondence, plaques, a scrapbook, clippings, photographs, programs, digital media and other documents related to Katharine Byrd Breyer and her husband Robert G. Breyer's participation in programs honoring Katharine's father, Admiral Richard E. Byrd. The materials mainly relate to posthumous building, ship, and monument dedications, and other ceremonies honoring Richard E. Byrd from locations around the world, including a significant dedication in Wellington, New Zealand, on the fifth anniversary of Byrd's death in 1962. The collection also has a few items dated before Richard E. Byrd's death, including some correspondence sent from Byrd to Katharine and Robert, and one 2007 clipping on Richard E. Byrd collected by Robert G. and Katharine's son, Robert Byrd Breyer. The materials are dated 1938-circa 2000s.

The Rendell Rhoades Papers, which dates from 1919-1986 contains manuscripts; correspondence; publications; photographs of Greenland, the Arctic, and Antarctica; maps, and philately collected and created by Rhoades regarding South America, particularly Tierra del Fuego in Argentina, and Antarctica. The majority of the manuscripts in the collection are typescript and handwritten versions of his book Tierra Del Fuego: Between the Straits and the Horn. The collection also contains correspondence from his wife, Nancy Rhoades, regarding his postal covers and postal stamp collection, and other work dating after his death in 1976.

The Robert S. Oesch Papers, dated 1955-1984, consists of covers, newspaper articles and clippings, stickers, and other materials related to Oesch's interest in Antarctica’s postal history and polar philately. The covers are stamped from a polar philately collector in Argentina and feature postage stamps that commemorate Argentina's Antarctica expeditions, the creation of bases in Argentine Antarctica, and the Falkland Islands. Newspaper articles, clippings, and the Antartida magazine feature stories about people's experiences living in Antarctica, updates on scientific and professional developments related to Arctic expeditions, and polar philately. These papers also include lists of covers sought out by polar philatelists and a timeline of Antarctica's postal history. Some materials in this collection are in Spanish.