William Robert Joseph Petre (1886-1954) (1886–1954) Parents Margaret Cargill Francis Petre Children Siblings Rosamund Margaret Petre Constance Mary Petre Edward Henry Petre Isabel Mary Petre Margaret Elizabeth Mary Petre Henry William Petre Agnes Dorothy Mary Petre Gertrude Mary Petre Monica Helen Mary Petre Bernard Francis Petre Philip Lewis Petre Joseph Austin Petre Partners Alice Carr Robinson