Sebastian Petre (1856–1934) (1856–1934) Parents Mary Walmesley Henry Petre Children Henry Petre Mary Petre Edward Petre William Petre John Petre Bernard Petre Sybil Petre Siblings John Petre Mary Julia Petre Sybil Mary Petre Dorothy Mary Petre Mabel Mary Petre Robert George Petre Florence Mary Petre Francis Petre Oswald Arthur Petre Helen Mary Petre Lucy Agnes Petre Partners Elise Sibeth