This collection consists primarily of the correspondence of William James MacNeven, his wife Jane Riker Tom MacNeven, their daughter Jane Mary MacNeven. Other correspondents include daughters Rosa and Anna and son William Hugh MacNeven. Two legal documents are also included: one in which William James MacNeven is the executor of a will and the other in which he signs over his family land in Ballynahown, County Galway, to the estate of attorney Michael Burke in payment for legal services rendered. Several correspondents from Ireland wrote to MacNeven, mostly dealing with the aforementioned land, but others seeking his help in immigrating to the United States. There are contributions to a memoir that Jane Mary MacNeven supplied to R. R. Madden’s The United Irishmen: their lives and times, and a handwritten speech by MacNeven’s son, James Joseph MacNeven. There is also a travel diary that William James MacNeven kept during a journey in Long Island in September 1822.