This subfonds contains photograph albums, prints, negatives, metal and glass plates, slides and film mostly taken of and by Captain Marcus Beresford Armstrong, his wife and children and their extended family and friends, predominantly between 1890 and 1960. The images include studio portraits of members of the Armstrong, Maude and Kemmis families and snapshots of family life at Moyaliffe Castle, county Tipperary and Ballinacor, county Wicklow. Also contained in the collection are images of hunting and shooting parties in country houses across Ireland, England and Scotland; portraits of horses bred at Moyaliffe Stud, and snapshots of tenants and labourers mainly on the Moyaliffe estate. The collection also contains a unique set of images taken by Captain Pat Armstrong of military life in India and South Africa, where he served with the Tenth Royal Hussars, and of field operations in Europe and North Africa during the First World War. Note that all images are black and white unless otherwise stated.

Glass plate negatives depicting images of Edward Donogh O’Brien, 14th Baron Inchiquin of Dromoland and Leamanegh, his children from his second marriage to Ellen Harriet née White, other family members and friends. Also depicted are views of Dromoland Castle and grounds, scenic beauty spots in County Clare and country houses and their occupants in England.