https://www.nh.gov/almanac/history.htm
"Meshech Weare was elected the first state "president"."
https://en.wikipedia.org/wiki/Meshech_Weare
1776-1782
"He served as the first president of New Hampshire. Before 1784 the position of governor was referred to as “president of New Hampshire.” He is also called “The father of New Hampshire.”"
https://en.wikipedia.org/wiki/John_Langdon_(politician)
"Langdon was elected to two terms as president of New Hampshire, once between 1785 and 1786 and again between 1788 and 1789."
https://en.wikipedia.org/wiki/Governor_of_New_Hampshire#History
"Traditionally, the governors of the colonial Province of New Hampshire were titled as "President of New Hampshire", beginning with the appointment of the province's first president, John Cutt, in 1679. After independence, from 1786 to 1791, "President of the State of New Hampshire" was the official style of the position. The New Hampshire Constitution was amended in 1791 to replace "President" with "Governor"."
https://en.wikipedia.org/wiki/List_of_governors_of_New_Hampshire
"The original 1776 Constitution of New Hampshire did not provide for a chief executive. The office of President was created by the 1784 constitution, and renamed Governor in 1792.[2] Governors served one-year terms until an 1877 amendment increased this to two years.[3] there have never been any term limits for the office, nor is there a lieutenant governor; should the office become vacant, the president of the New Hampshire Senate acts as governor.[4]"
https://www.nh.gov/almanac/governors.htm