The killings at Coolacrease was an incident that took place in County Offaly during the Irish War of Independence. In late June 1921, Irish Republican Army (IRA) volunteers came under fire at a roadblock in the rural area of Coolacrease (near Cadamstown). The roadblock was located at the boundary of land owned by loyalist farmer William Pearson. On 30 June, his sons Richard (aged 24) and Abraham (aged 19) Pearson were shot by an IRA firing squad and their house was burnt.