Walter Warrick Vivian cheif agent for Dinorwig slate quarry(1856-1943) (1856–1943) Parents Charles Vivian, 2nd Baron Vivian Mary Elizabeth Panton Children Siblings Charles Hussey Panton Vivian John Brabazon Vivian Mary Charlotte Martha Vivian Robert Champion Vivian Maud Vivian Hussey Vivian, 3rd Baron Vivian Edith Vivian Claud Hamilton Vivian