Jean Pio Robert Clerk (1870-1932) (1870–1932) Parents Marie Louise Elizabeth Dupuis George Edward Clerk Children Simone Corinne Clerk Jacques Donald Clerk Jean Elton Clerk David Douglas Clerk Camille Gertrude Clerk Louis Philippe Duncan Clerk Jeanne Isabella Clerk Siblings Alexander Marie Joseph Clerk George Edward Clerk Charles François Clerk unknown daughter Clerk Edmund Antoine Clerk Henry Joseph Clerk unknown daughter Clerk unknown daughter Clerk Partners Marie Alma David