Various different documents, such as articles, newsletters, rorrespondence, genealogies etc. regarding Orella and Erburu Families and its menbers.

Bulletins from Paul Laxalt’s press office, clippings about Paul Laxalt and news and articles about Robert Laxalt. It also includes a tape, slides, photographs, posters, festival schedules and press clippings of the Basque dances group "Oraï-bat" from Bayonne.

Photos of Basque Country, Castilla, Aragon and other Basque issues. It also includes various music sheets of Basque popular music and some “bertso”s.

Series of articles titled “Le Tragique Destin d’Euskadi” published in “La Petit Girond” by Pierre Dumas.

Tapes and transcripts of the oral history to Reginald Meaker conducted by Collette Etchart in 1976. Also, a manuscript of Menaker's book.

Research work done by Robert Herman about the music heritage of the Basque immigrants in U.S.

Dominique Laxalt’s accounts, documentation, an invitation and correspondence regarding Basque issues, bertsos, cardboards and a speech for Eloy Placer’s funeral. It also includes two dossiers about Robert Laxalt’s biography and works and Spanish translations of some of his works.

Different kind of materials related to Basque political issues, especially ETA and the Basque Conflict. It includes several articles written by Oriol P. Sunyer and Robert P. Clark, press dossiers and clippings, maps, election results, Basque laws, newspaper supplements and a magazine, various reports and a a copy of the book “The Legitimacy of Ethnonationalist Insurgency” by Robert P. Clark.

Five copies of manuscripts written by Roslyn Frank.

Copies of articles written by Sandra Ott.