Collection consists of history of family business establishment at L'anse au L'oup (1771-1933) and family history of the O'Briens; two copies of the O'Brien family tree (1825-1955); paper written by Lawrence O'Brien entitled "Leo O'Brien: Master Folksinger and Storyteller of L'anse au L'oup, Labrador" (1977). Covering dates for this collection are 1771-1955.