Photograph of George Bernard Johnston in his military uniform. Photograph printed by Mister FW Baker, Calcutta, India.

Diaries of the 4th Earl (including a largely empty diary for 1872 of [his wife, Cassandra]) recording a tour in England, 1871; tours in the United States, 1884 and 1891; a visit to Jamaica, 1891; and a tour of India, 1897-8: together with two of his passports, 1890 and 1897.

Book of photographic prints of 2nd Battalion Prince of Wales's Leinster Regiment Royal Canadians, Jullundur & Amritsar (India) 1911, with annotations on biographical details of subjects.

Booklet commemorating Presentation of Decorations and Medals to the 2nd Battalion The Prince of Wales's Leinster Regiment (Royal Canadians), at Colchester, February 1920.

This series contains albums of photographs and loose photographs collected by Theodora Trench during her travels.
The files includes postcards from The French Riviera, India, Egpyt and the Channel Islands.

Photograph album created by Lt. Col. M. O'Carroll Fitz-Simon, M.C. , who began his military career in Prince of Wales' Leinster Regiment, which was headquartered at Birr. The photographs document a peace-keeping mission the Leinsters undertook in Silesia (now part of Poland) from their departure at Dover on 31 May 1921, through Germany and to their destination of Oppeln (Opole in Poland today). Following the disbandment of the regiment in June 1922, Fitz-Simon joined the King's Own Regiment, Lancaster and the remaining photographs in the album depict scenes from missions in India and Burma. There is also a small number of photographs of people and houses in the Birr area including Whigsborough House, and the burnt out remains of Birr Barracks (following its destruction in the Civil War in July 1922).