As Governor he was one of a succession advocating improvements in public education. Carol Hoffecker in Democracy in Delaware relates how he "argued that Delaware had a special need to educate its people because the state lacked vacant land for an expanding population. Therefore, he said 'much reliance must be placed on the mental talents of our citizens for the support of our power and importance in the Union.'" [1] The General Assembly responded by appropriating a laughable $1,000 to each county for this purpose.
Furthermore, Delaware was stagnating. Medieval sounding punishments, like nailing ears to a pillory post, continued to be meted out in the penal system. The soil was increasingly exhausted and, due to the resulting out migration, Delaware's population in 1820 was roughly the same as in 1810. An immediate, and permanent, consequence was that it lost its second seat in the U.S. House of Representatives.
Clark died August 14, 1821 in Smyrna, Delaware and is buried at Duck Creek Presbyterian Churchyard, now Holy Hill Cemetery, south of Smyrna on Lake Como.
There is no known portrait of John Clark.
Almanac
Elections were held the first Tuesday in October. Members of the Delaware General Assembly took office in the first Tuesday of January. State Representatives had a term of one year. The Governor takes office the third Tuesday in January, and had a three year term.