William Herbert Morton (14 September 1877–1947) was a British locomotive engineer who rose to the position of general manager of the Great Southern Railways (GSR) in Ireland.
He previously held the chief engineering positions for GSR and Midland Great Western Railway (MGWR).
[4][5][1][6] While Morton's only attributed design during his tenure of the top engineering positions was the MGWR Class F his business acumen, management qualities, influence on the upgrading of existing designs notably with regards to superheating and his influence on acquiring bargain surplus stock was of considerable benefit to the Irish locomotive fleet.
[1][5] He was promoted to the position of first assistance locomotive engineer under Edward Cusack, contributing significantly to many designs and pioneered work on superheater development.
When Bazin retired in 1929 Morton succeed him as Chief Mechanical Engineer for the GSR and focused on general fleet improvement including widespread rebuilds with superheating.