+---Andrew Stevens +---John Wardlow Stevens | +---Marianne Campbell +---George Frederick Stevens | | +---James Riddell (14 NOV 1804-15 FEB 1892) | | +---Walter Riddle (ABT AUG 1835-30 MAY 1914) | | | | +---Andrew Goodall (-BEF 1869) | | | +---Jane Goodall (ABT 1805-09 AUG 1869) | | | +---Janet Donaldson | +---Jane Riddle (08 NOV 1860-) | | +---William Chrichton | +---Janet Chrichton (ABT 1840-16 DEC 1875) +---John Wardlow Stevens (26 SEP 1910-07 AUG 1997) | | +---Robert Porteous | | +---James Bowie Porteous (07 JUN 1842-16 JAN 1923) | | | +---Jane Bowie | +---Eveline Margaret Porteous (1889-1975) | | +---James Riddell (14 NOV 1804-15 FEB 1892) | | +---Walter Riddle (ABT AUG 1835-30 MAY 1914) | | | | +---Andrew Goodall (-BEF 1869) | | | +---Jane Goodall (ABT 1805-09 AUG 1869) | | | +---Janet Donaldson | +---Janet (Jessie) Riddle (09 SEP 1864-1945) | | +---William Chrichton | +---Janet Chrichton (ABT 1840-16 DEC 1875) Douglas Roy Stevens | +---Henry Roberts +---? Roberts +---Marian Wood Wright