[5] The infantry barracks at Castlebar, which were built on the site of an old castle, were completed in 1834.

[7] A part of barracks was burnt down by the Irish Republican Army in spring 1922.

[8] Blocks E/F and J/K/L and the hospital were completely destroyed[9] before the site was secured by the forces of the Irish Free State in summer 1922.

[10][9] The barracks, which latterly were used as a training camp by the Reserve Defence Forces, closed in March 2012 and the site has since been acquired by Mayo County Council.

[11] On 29 January 2016 when workers were probing the ceiling of block A they discovered a human skull.