Kammala wannan jumla: "Asali mai yanka # 51". An kira shi don Sebago Lake, wanda General Engineering da Drydock suka gina a Oakland, California, kuma aka kaddamar da shi a ranar 10 ga Fabrairu, 1930. Ta hallaka wasu jiragen ruwa fiye da sauran jiragen ruwa na aji. An canja shi zuwa RN kuma ya zama HMS "Walney" a ranar 12 ga Mayu, 1941, mai suna bayan Walney Island. Bayan aiki a matsayin mai ba da gudummawa, an shirya shi don Operation Reservist, wani hari a kan tashar jiragen ruwa na Oran wanda ya kasance wani ɓangare na
An rasa ta a ranar 8 ga Nuwamba 1942 a cikin harin, an ba kyaftin dinta Victoria Cross saboda rawar da ya taka wajen ci gaba.