December 23, 1753, Bozrah, Connecticut.
August 29, 1825, Waterville, Maine.
Originally at the Granary Burying Ground, Boston, Massachusetts. Moved in 1852 to Mount Auburn Cemetery, Cambridge, Massachusetts.
For some time Baldwin was a member of the Connecticut state legislature. In 1783, he was ordained to the Baptist ministry, and from 1790 until his death, was pastor of the Second Baptist Church in Boston, Massachusetts.