Katherine Bowlby (1885-1960) (1885–1960) Parents Elizabeth Vans Agnew Edward Salvin Bowlby Children Hugh Trenchard Patrick John Salvin Boyle Edward James Boyle Belinda Boyle Thomas Trenchard, 2nd Viscount Trenchard Siblings Hugh Salvin Bowlby Lionel Henry Salvin Bowlby Eva Mary Salvin Bowlby Frances Amy Salvin Bowlby Eleanor Salvin Bowlby Geoffrey Bowlby Henry Salvin Bowlby Frank Rimington Bowlby Charles Russell Bowlby Edward Russell Bowlby Arthur Salvin Bowlby Marian Emily Bowlby Ada Maud Bowlby Partners James Boyle Hugh Trenchard, 1st Viscount Trenchard