The collection includes materials belonging to and about eighteenth-century Irish tenor and composer Michael Kelly. Concerning Kelly there are contemporary newspaper clippings regarding his performances, a hand-written list of his compositions and dates, and a subscription list from an effort to erect a memorial to him in Ireland after his death. There are also several pieces of correspondence to Kelly from the Drury Lane Theatre acknowledging salary owed. Lastly, there is a manuscript resolution of the Association of the Friends of Ireland in Philadelphia, whose relationship to Kelly is undocumented.