SS Glentworth was a shelter deck cargo steamship built in 1920 by Hawthorn Leslie & Co. in Newcastle-upon-Tyne, England for R.S. Dalgliesh and Dalgliesh Steam Shipping Co. Ltd., also of Newcastle-upon-Tyne. After the Great Depression affected UK merchant shipping in the first years of the 1930s, Dalgliesh sold Glentworth to a company controlled by Counties Ship Management (an offshoot of the Rethymnis & Kulukundis shipbroking company of London) who renamed her SS Box Hill.