- Born in 1723.
- Parents were PETER JENNISON and JANE .
- His brother was ISRAEL JENNISON
- Married MARY HEYWOOD on April 10, 1755 in Shrewsbury, Worcester County, Massachusetts.
- Died May 18, 1804 in Shrewsbury, Massachusetts.
CHILDREN
- JOSEPH BROOKS JENNISON, born January 5, 1756 in Shrewsbury, Worcester County, Massachusetts; died March 5, 1839 in Norwich, Chenango County, New York. Married DAMARIS HOWE on June 24, 1792 in Shrewsbury, Worcester County, Massachusetts.
- CATHARINE JENNISON, born July 20, 1757 in Shrewsbury, Worcester County, Massachusetts; died September 5, 1760 in Shrewsbury.
- MARY JENNISON, born April 30, 1759 in Shrewsbury, Worcester County, Massachusetts; died April 17, 1775.
- JOHN JENNISON, born July 21, 1761 in Shrewsbury, Worcester County, Massachusetts. Married SARAH FLINT on February 26, 1798. Married DOLLY SPOONER on May 4, 1806 in Worcester County, Massachusetts.
- REBECCA JENNISON, born about 1763, probably in Shrewsbury, Massachusetts.
- LEVI JENNISON, born July 20, 1763 in Shrewsbury, Worcester County, Massachusetts; died December 21, 1798 in Shoreham, Vermont. Married RUTH HEMENWAY on March 28, 1789 in Shrewsbury, Worcester County, Massachusetts.
- SAMUEL JENNISON, born August 7, 1765 in Shrewsbury, Worcester County, Massachusetts.
- CATHARINE JENNISON, born August 2, 1767 in Shrewsbury, Worcester County, Massachusetts. Married ASA NEWTON on December 23, 1784 in Worcester, Worcester County, Massachusetts.
- REBECCA JENNISON, born about 1769, probably in Shrewsbury, Massachusetts.