County Donegal Railway Joint Commitee Steam Class 5a

Cylinders 15.25" × 21"; coupled wheels 4' 0"; boiler pressure 160 psi; tractive effort 14,294 lbs; weight 50 tons 8 cwt; tank capacity 1,500 gallons; coal capacity 2.5 ton; cost £2,495.

Class 5a, Engine Number 21

Ballyshannon – Built 1912; Nasmyth, Wilson; 2-6-4T; renumbered 1 and renamed Alice in 1927; scrapped 1961

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Class 5a, Engine Number 2a

Strabane - Built 1912; Nasmyth, Wilson; 2-6-4T; renumbered 2 and renamed Blanche in 1928; preserved and on display at the railway hall, Ulster Folk and Transport Museum, Cultra, Co. Down.

Class 5a, Engine Number 3a

Stranorlar – Built 1912; Nasmyth, Wilson; 2-6-4T; renumbered 3 and renamed Lydia in 1928; scrapped 1961.