+--Charles Elmer Gregory  (15 MAR 1865-30 JAN 1946)
+--Robert Luscombe Gregory  (10 FEB 1892-1966)
|  |  +--John Campbell Galbreath  (24 AUG 1824-)
|  +--Emma Eliza Galbreath  (29 JUN 1867-29 MAR 1940)
|     |     +--John Butler  (10 FEB 1756-6 FEB 1840)
|     |  +--Brackett Butler  (28 JAN 1793-23 SEP 1863)
|     |  |  |  +--Oliver Robbins  (OCT 1727-27 MAR 1792)
|     |  |  +--Lucy Robbins  (18 JUL 1756-29 JAN 1840)
|     |  |     +--Elionenai Shepard  (1 AUG 1727-31 MAY 1772)
|     +--Rosetta (Roseltha?) Butler  (30 JUN 1838-11 FEB 1898)
|        |                    +--John Killough 
|        |                 +--John Killough  (1630-)
|        |              +--John Killough  (1657-CA. 1715)
|        |              |  +--Mary Hyde 
|        |           +--Robert Killough  (1681-1737)
|        |           |  +--Anne (McNeil) MacNeill  (CA. 1659-)
|        |        +--Finley (Killough) Kelloch  (1711-)
|        |        |  +--Margaret Finley 
|        |     +--Alexander Kelloch  (1740-14 FEB 1826)
|        |     |  |  +--John Young 
|        |     |  +--Mary Young  (12 JUN 1700-21 SEP 1795)
|        |     |     +--Catherine?  
|        |  +--Alexander Kalloch  (26 SEP 1770-MAY 1853)
|        |  |  +--Eleanora Gault 
|        +--Elizabeth Kalloch  (26 APR 1811-13 AUG 1897)
|           |  +--Josiah Mero 
|           +--Elizabeth Mero  (1775-3 SEP 1847)
|              +--Meriah Andrews 
Robert Edson Gregory 
+--Cordelia Alice Radley  (1890-FEB 1963)