- Born January, 1851 in Highgate, Franklin County, Vermont.
- Parents were SAMUEL WILLIAM JENNISON and EMILY JANES.
- Married MARY ELLEN SLOAN November 1, 1871 in Swanton, Franklin County, Vermont. She was born January 21, 1855 in St. Albans, Franklin County, Vermont.
CHILDREN
- EDNA EMILY JENNISON, born May 27, 1873 in Swanton, Franklin County, Vermont; died October 30, 1916 in Lowell, Middlesex County, Massachusetts.
- LEWIS HOMER JENNISON, born July 31, 1875 in Stanstead, Quebec, Canada. Married DOROTHY ROBINSON on June 25, 1901 in Lowell, Middlesex County, Massachusetts.
- CHARLES B. JENNISON, born January 21, 1877 in Stanstead, Quebec, Canada.
- CLAYTON FOSTER JENNISON, born March 4, 1879 in Fitch Bay, Quebec, Canada. Married EDITH MAY CHAPLIN on August 26, 1906 in Lowell, Middlesex County, Massachusetts.
- KITTIE ELIZABETH JENNISON, born November 14, 1881 in Lowell, Middlesex County, Massachusetts. Married WALTER M. OBER in 1907.
- NELLIE HAZEL JENNISON, born December 28, 1887 in Lowell, Middlesex County, Massachusetts. Married PERCY E. VERNUM.