Library and Archival Materials:
Over 5000 photographs of Kaua'i and Ni'ihau dating from 1890-2002. Historical data, glass plate negatives, albums, postcards, plantation records, historical books.

Works of Art:
Art pieces of: Alfred Gurrey Collection (30 framed oil paintings), Ruben Tam, Theodore Wores, Laka Morton, Geraldine Tam, Charles Bartlett paintings & prints, Madge Tennet, Juliet May Fraser, Charles Furneaux, Otto Wix. Botanical prints, Japanese prints & scrolls, Weber & Damon Hawaiiana engravings, maps, pen and ink drawings, Evan Robinson block prints, and RuthHanner collection.

Textiles:
50 Hawaiian quilts, other quilts, carpets, woven fiber hats, costumes from immigrant groups: Japanese, Chinese, Filipino, Korean, German, and Missionary era.

Hawaiian and Pacific Cultural Materials:
Over 1000 stone implements and tools: pounders, adze, game stones, bowls and vessels.
Feather work: standards (kahili), capes (3), lei, helmet, human hair and tooth necklace (lei niho palaoa)
Fiber mats: lauhala, makaloa
Wooden objects: tapa beaters, pig boards, bowls
Tooth, bone and shell objects
Weapons
Gourd containers
Drums (pahu)
Bark cloth (kapa)
Outrigger canoe

Historical Collection:
10 Hawaiian saddles, Asian dolls, missionary era wooden furniture, WWII memorabilia, piano, 3 carved wooden plaques by Otremba, domestic china & utensils, Whitney chairs, clocks, plantation era furnishings, Asian weapons, bottles, scrimshaw.

Natural History Collection:
Marine shells, land snails, archeological bone, bird specimens, sea otter pelt.