Gore trained at the Slade School of Fine Art (1896-1899) where his contemporaries included Harold Gilman, Augustus John, and Wyndham Lewis. In 1904, whilst visiting Dieppe, he was introduced to Walter Sickert, and the two would go on to form a lifelong friendship which led to Gore joining Sickert’s Fitzroy Street Group and, in 1911, to the co-founding of the Camden Town Group.