One of the uncommon Americans of the eighteenth century is a man so neglected today that the Dictionary of American Biography, which lists the great and the not-so-great of the past, does not bother to include him. Yet he is a far worthier and more interesting figure than many of the second-rate politicians who clutter the pages of official biography. Many of the Founding Fathers knew and respected his work. Jefferson admired him and helped to make his reputation. Washington's Administration appointed him to a federal post.