The three volumes in this collection contain hand written entries recording the details of students registered with Our Lady of Mercy Training College Baggot Street and Carysfort training college from 1883 to 1922. The large double ledger volumes record student details, such as: home address, age, diocese and parish, position in school, and examination results. These registers will be of interest to those interested in genealogy and social history, as well as the history of education and teacher training in Ireland.

This collection comprises the papers and correspondence of the Kevin Barry Memorial Committee. The Committee was formed to raise funds to create a memorial to Kevin Barry (20 January 1902–1 November 1920). Barry, a medical student at University College Dublin, was executed for his part in an ambush which resulted in the deaths of three British Army officers. The Committee commissioned Harry Clarke Stained Glass Limited to create a stained glass window dedicated to Kevin Barry and the other students and graduates of University College Dublin who lost their lives in the struggle for Irish Independence. The window, designed by Richard King, was erected in Earlsfort Terrace and unveiled on 1 November 1934. In 2010, the window was conserved, restored and relocated in the Charles Institute at Belfield, the current campus of University College Dublin.

A collection of papers belonging to Fr. Francis A. Gleeson relating to his time as Catholic Military Chaplain to the 2nd Battalion Royal Munster Fusiliers during World War I. The papers include diaries detailing life at the front and religious activities, Brigade Rolls listing mainly Roman Catholic soldiers, and correspondence from the families of men missing or killed in action.