Oswald Arthur Petre (born 1848) (b. 1848) Parents Mary Walmesley Henry Petre Children Archibald Petre Helen Petre Patricia Petre Mabel Petre Dorothy Petre Siblings John Petre Mary Julia Petre Sebastian Petre Sybil Mary Petre Dorothy Mary Petre Mabel Mary Petre Robert George Petre Florence Mary Petre Francis Petre Helen Mary Petre Lucy Agnes Petre Partners Isabel Leach