 Barbara Castle MP.Initially to maintain the Class 303 and Class 311 rolling stock operating on the electrified services from Glasgow Central High Level to Gourock, Wemyss Bay, Motherwell via Rutherglen and also the Cathcart Circle and Kirkhill Branches.Electrification up until this point had been confined to Cathcart Circle and Newton/Neilston branches (May 1962) and the North Suburban lines (1960) with sets being maintained at Hyndland Depot which opened in 1959.