Trinity College material includes material from Larkin's academic career, with a letter from his tutor J. M. K. Vyvyan with the offer of a place at Trinity in 1961; supervision programmes from supervisor R. A. Leigh; examination papers for the Trinity College French prizes, March 1963; a letter of congratulations from the Master Lord Adrian on his first in Finals in 1964, to several long letters from Leigh relating to possible research topics in 1964-1965.
Material relating to his participation in Trinity athletics includes three photographs taken mid-race, race certificates and race results of the Hyde Park road relay, St Edmund Hall road relay, Selwyn College road relay, the 3 miles race, and the Cuppers Finals at Milton Road, accompanied by cuttings about the races.
Added to these are College Chapel services cards, menus for the Commemoration of Benefactors feast, an invitation and programme for the 1967 Trinity May Ball, an invitation to the Advanced Students dinner, and a menu for the Trinity Research student dinner.