Upon the death of Governor Thomas Chittenden, he served for a short time as the second Governor of Vermont from August 25 to October 16, 1797, when the new governor, Isaac Tichenor was sworn in. Brigham then resumed his duties as lieutenant governor.
After the death of Governor Thomas Chittenden, he served briefly as Vermont's second governor from August 25 to October 16, 1797, until Isaac Tichenor was sworn in. Brigham then resumed his role as lieutenant governor.