3 Down Brigade – 3 Northern Division

* Contradictory information on file: some documents give brigade strengths for both critical dates. and others state that the brigade did not exist on the second critical date. The data provided here is that as given for both 11 July 1921 and 1 July 1922.
1 Battalion: Unit strength on 11 July 1921 was 115 all ranks,  and the strength on 1 July 1922 was 146 all ranks. The companies of the 1 Battalion were located as follows: Castlewellan, Kilcoo, Clanvaraghan, Leitrim, Munninabane, Annsboro and Gargory.
2 Battalion: Unit strength on 11 July 1921 was 160 all ranks, and the strength on 1 July 1922 was 136 all ranks.The companies of the 2 Battalion were located as follows: Downpatrick, Rossglas, Saul, Ballyorgan or Dunsford, Ardglass, Strangford and Portaferry.
3 Battalion: Unit strength on 11 July 1921 was 146 all ranks, and the strength on 1 July 1922 was 168 all ranks.The companies of the 3 Battalion were located as follows: Broclough, Crossgar, Darraghcross, Ardtanagh and Magheraleggan.
4 Battalion: This unit did not exist on the 11 July 1921. The strength on 1 July 1922 was 86 all ranks.The companies of the 4 Battalion were located as follows: Munninabane, Ardtanagh and Clanvaraghan.
5 Battalion: This unit did not exist on the 11 July 1921. The strength on 1 July 1922 was 47 all ranks. The companies of the 5 Battalion were located as follows: Strangford and Portaferry.

3 Down Brigade – 3 Northern Division Featured Operations