The Michael Cusack collection is the unique personal collection of the founder of the Gaelic Athletic Association (GAA), generally acknowledged to be the greatest amateur sporting organisation in the world. The GAA, which remains a dominant force in Ireland's cultural and sporting life, was founded in 1884 as a highly influential element of the Irish cultural renaissance of the late nineteenth century and of Ireland's struggle to re-establish its own political, linguistic and cultural identity. Among the most important historical items in the collection are the complete minutes of the Dublin Hurling Club, from 1883. Cusack was Vice-President of the club, a predecessor to the national organisation founded the following year. In addition, there is a diary kept by Cusack on a visit to his native Clare in 1902 and a range of personal, biographical and photographic material on Cusack's family. Aside from its value for researchers into the cultural forces at work in that seminal period, and in particular the events leading up to the foundation of the GAA, the collection is unique in constituting the only known surviving material in Cusack's own hand and also in affording an unparalleled insight into the resilient personality of Cusack, the private family man, and his vibrant and gentle wit.