Contains lists of Irish Guards noting their name, regiment number, rank and where interned, including a separate listing of those from Birr; letters from Selfridge's & Co., Oxford St, London to Lois, Countess of Rosse, in relation to the contents of nine parcel types assembled for sending to the Irish Guards Prisoners of War; correspondence from Mary Britton, Rosfaraghan, Ferbane and Col. Douglas Proby, in relation to subscriptions collected in her village on behalf of Private B. Anderson (Reg No 3220), who is interned in Limburg; and correspondence between Major de Vesci, Regimental Adjutant, Irish Guards to Lady Rosse, mainly in relation to the movement of Irish Guards prisoners between POW camps in Germany so that parcels can be sent to them. Also includes ephemeral material such as newspaper cuttings relating to the Irish Guards, a packet of jam jar covers, and a copy of an illuminated address presented to Queen Mary from the Women of Ireland in July 1911, and distributed by Lady Aberdeen, the head of war relief in Ireland.

Preprinted acknowledgment postcards sent by return by prisoners-of-war in German camps on receipt of relief parcels organised by the Birr Castle scheme. Personal details recorded include name, rank and internment camp.

Administrative correspondence relating to the prisoner of war relief scheme set up at Birr Castle under the patronage of Lady Rosse; postcards and letters of thanks from the prisoners of war from Irish regiments (but predominantly the Irish Guards) interned in Germany; and acknowledgment postcards of parcels received from same.