Gertrude Mary Petre (1888-1972) (1888–1972) Parents Francis Petre Margaret Cargill Children Siblings Constance Mary Petre Rosamund Margaret Petre Edward Henry Petre Margaret Elizabeth Mary Petre Isabel Mary Petre Joseph Austin Petre Philip Lewis Petre Bernard Francis Petre Monica Helen Mary Petre William Robert Joseph Petre Agnes Dorothy Mary Petre Henry William Petre