

It doesn't make sense to me that Ichabod FESSENDEN is the child of William and Sarah MUNROE. I propose instead:
Nathanael Fessenden
Born in 1746 - Lexington, Middlesex, Massachusetts
Died in 1790 - Medford, Middlesex, Massachusetts USA
Lydia Fessenden (Bemis)
Born in 1751 - Cambridge, Middlesex, Massachusetts, United States
Died in 1770 - Arlington, Middlesex, Massachusetts, United States
https://www.myheritage.com/discovery-hub/475091701/matches-for-pers...
If I am reading correctly (as you have placed Ichabod off limits on your tree) you are talking about Ichabod Fessenden
Birth: June 07, 1795 Lexington, MA
Death: April 03, 1830
Managed by: David Prins
As information "The Fessenden Family in America" by Edwin Allen Fessenden has the following:
615 NATHANIEL FESSENDEN (b. June 7,1746, Lexington, Mass.)
married (1) LYDIA BEMIS prob. 1768 (int. filed Apr. 6, 1768). She
was born about 1751, the only daughter of Philip and Lydia (Dix)
Bemis. She was accidentally killed by a gunshot while holding in her
arms their only child, Ichabod Fessenden, then an infant, who was unhurt.
A lad of thirteen was the cause of her death; he snapped a musket
at a young girl, not supposing it to be loaded. The ball missed the girl
but struck Mrs. Fessenden in the eye, causing her instant death on May
30, 1770. The Boston Gazette for June 4, 1770, comments: "The gun
belonged to Nathaniel Fessenden. Mrs. Fessenden was a woman of
The Line of Thomas Fessenden 195
unblemished virtue and her chief ornament was modesty. Her untimely
death is lamented by all her acquaintances, and her husband, in particular,
refuses to be comforted." Nathaniel Fessenden married (2)
ELIZABETH WEBB June 20, 1771. She was from Danvers, Mass.; she
and her sister Sarah Webb were both baptized at West Cambridge Oct.
4, 1772. Nathaniel and Elizabeth (Webb) Fessenden both "owned the
covenant" in the West Cambridge Church Dec. 6, 1772. Nathaniel Fessenden
was a Revolutionary soldier, enlisting in 1777 as a private. He
died Jan. 3,1790, at Medford, Mass, "of dropsee and consump.".
CHILDREN by first wife, Lydia (Bemis) Fessenden:
-J. Ichabod b. July 6, 1769 (bap. Dec. 6, 1772); m. June
7, 1795, to Rebecca Munroe; d. Apr. 3, 1830.
CHILDREN by second wife, Elizabeth (Webb) Fessenden:...
I am not sure where the birth date of 1795 is from.