+--Robertson Foss 
+--Daniel Morrison Foss  (10 MAR 1834-)
|  |  +--Henry Drown  (27 JAN 1773-25 AUG 1831)
|  +--Charlotte Drown  (27 JAN 1796-29 FEB 1868)
|     |     +--Samuel Morison  (1671-29 SEP 1757)
|     |     |  +--  
|     |  +--Samuel Morrison  (13 Mar 1727-15 Mar 1775)
|     |  |  +--Margaret Henry  (1685-30 APR 1774)
|     +--Isabella Morrison  (14 NOV 1765-23 MAR 1858)
|        |  +--Randal Alexander 
|        |  |  +--  
|        +--Isabel Alexander  (16 FEB 1721/22-AFT 1776)
|           +-- Janet 
Arthur M. Foss  (15 OCT 1868-)
+--Chalcedonia T. Foss