1-Samuel Keirstead b. 16 Feb 1719, Staten Island, New York, d. 1778
 +Mary Johnson b. 16 Feb 1725, Sussex, New Brunswick, d. Bef Jan 1818
|--2-Isaiah Keirstead b. 9 Nov 1761, Jamaica, Long Island, NY, d. 1851, 
|    Studholm, Kings, New Brunswick
    +Elizabeth Lester b. 27 Feb 1776, Hamstead, Queens, NB, d. 1866
   |--3-Amenzie Keirstead b. 20 Nov 1804, d. Bef 1854
       +Arlchie Morrell b. Abt 1803
      |--4-Phoebe Ann Keirstead b. 11 Jul 1831, Studholm, Kings, New Brunswick, 
      |    d. 4 Nov 1904, Groton, Middlesex, Massachusetts
          +Harvey Brook Keirstead b. 6 Feb 1833, Collina, Kings, New Brunswick, 
           d. 26 Mar 1912, Groton, Middlesex, Massachusetts
         |--5-William Francis Keirstead b. 21 Mar 1853, Studholm, Kings, New 
         |    Brunswick, d. 1940
         |--5-Annie Jane Keirstead b. 23 Apr 1855, Studholm, Kings, New 
         |    Brunswick, d. Bef 1910, Pepperell, MA
         |--5-Levi Springer Keirstead b. 16 Oct 1858, Studholm, Kings, New 
         |    Brunswick, d. 12 Aug 1921, Lowell, Middlesex, Massachusetts
         |--5-Deborah Ruth Keirstead b. 20 Jul 1861, Studholm, Kings, New 
         |    Brunswick, d. 7 Feb 1879
         |--5-Eber Joseph Keirstead b. 19 Sep 1866, Collina, Kings, New 
         |    Brunswick, d. 1944, Groton, Middlesex, Massachusetts
         |--5-Foster Mcfarlane Keirstead b. 17 Oct 1869, Collina, Kings, New 
         |    Brunswick, d. 1967, Worcester, Worcester, Massachusetts
         |--5-Wellington Harvey Keirstead b. 31 Jan 1872, Studholm, Kings, New 
         |    Brunswick