The seven members of the class entered service on the UR in 1914.[3] In 1920, the East Africa Protectorate became the Kenya Crown Colony and was opened for settlement. The UR soon became hard pressed to keep up with the increased movement of goods and produce, and the locomotives in the class were used to address that problem.[4] They continued in service after the UR was renamed the Kenya-Uganda Railway (KUR) in 1926.[3]
Patience, Kevin (1976), Steam in East Africa: a pictorial history of the railways in East Africa, 1893-1976, Nairobi: Heinemann Educational Books (E.A.) Ltd, OCLC3781370, WikidataQ111363477
Patience, Kevin (1996). Steam Twilight: The last years of steam on Kenya Railways. Bahrain: Kevin Patience. OCLC37615720.