+--Henry Oscar Avery  (30 Jun 1909-1977)
Donald Lawrence Avery  (4 Dec 1936-25 Nov 2013)
|     +--Louis Gilbo  (Feb 1856-31 Jul 1923)
|  +--Roy Gilbo  (21 Jul 1895-11 Oct 1957)
|  |  |     +--Alexander Guyette  (1803-Apr 1873)
|  |  |  +--William Henry Guyette  (Mar 1827-1 May 1911)
|  |  |  |  +--Mary O'Clare  (1814-)
|  |  +--Sarah Mae Guyette  (14 Feb 1860-9 Nov 1931)
|  |     |  +--Levi Miller  (1814-)
|  |     +--Sarah (Sally) May Miller  (Nov 1837-5 Feb 1900)
|  |        +--Emily   (1815-)
+--Vernice Eva Gilbo  (17 Aug 1916-26 Nov 2001)
   |  +--Joseph Rushlow  (7 Jan 1817-2 Aug 1917)
   +--Rosella Evangeline Rushlow  (30 Apr 1896-1 Feb 1959)
      +--Louise (Lucy) Pecor