Col. Loammi Baldwin was a noted soldier, politician and has been called the Father of American Civil Engineering because of his role in surveying and building the Middlesex Canal and his other public works projects.

Born in Woburn, Massachusetts, Baldwin was a friend and fellow student at Harvard College with Benjamin Thompson, also of Woburn. Thompson later became better known as Count Rumford.

Baldwin joined the Woburn militia in 1774. On April 19, 1775 Baldwin was a major in the Woburn militia and took part in the fighting on that date. He joined Col. Gerrish's regiment and was later promoted to the command of that regiment. Baldwin fought in the Battle of Brooklyn Heights and crossed the Delaware with Gen. Washington to join in the attack on the Hessian troops at Trenton. He retired from the Army in 1777 due to health concerns.

Col. Baldwin became Sheriff of Middlesex County and served in the Massachusetts House. He was a member of the American Academy of Sciences and contributed papers to the society. The Baldwin apple is named for him.