Laois man Henry Phelan was shot and killed in a shop in 1922.
The first Garda murdered on duty will be commemorated at a memorial mass in Laois this weekend.
22-year-old Henry Phelan, who was from Rushin in Mountrath, was shot and killed on November 14th, 1922, at a shop in Mullinahone in Co. Tipperary.
The mass will be held in St. Fergal's Church in Camross tomorrow morning at 11am.
A funeral note will then be provided by renowned Piper Cormac Bowell and a wreath laying ceremony will commence Henry's headstone in the nearby cemetery.