+--Capt. David Spear 
   +--Thurston W. Spear  (12 MAR 1820-)
   |  +--Nancy Farnsworth 
+--Spencer K. Spear  (19 AUG 1851-22 FEB 1943)
|  |                       +--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 
|  |  +--Dea. Mero Kalloch  (8 FEB 1801-11 MAR 1870)
|  |  |  |  +--Josiah Mero 
|  |  |  +--Elizabeth Mero  (1775-3 SEP 1847)
|  |  |     +--Meriah Andrews 
|  +--Lydia M. Kalloch  (6 DEC 1822-20 FEB 1878)
|     |  +--Robert Matthews 
|     +--Ruth P. Matthews  (10 SEP 1801-12 MAR 1891)
|        +--Lydia Prior 
Mildred Spear  (6 MAY 1876-)
|  +--John Patterson 
+--Tena H. Patterson  (22 OCT 1853-13 JAN 1915)
   +--Lavinia Parsons