I don't have very much information on William Mugford other than he married a Frances (Fanny) Anthony not Susanna. That maybe a typo on my part. William Mugford married Frances Anthony daughter of Jacob Anthony and Susanna of North River, Newfoundland. Frances was born 6 June 1889 in North River. William and Frances were married on 28 Oct 1915. I think that this William Mugford was born to late to be your William Mugford.