Toucey, Isaac, 1792-1869.

Alexander Dallas Bache (1806-1867) was an important scientific reformer during the early nineteenth century. From his position as superintendent of the United States Coast Survey, and through leadership roles in the scientific institutions of the time, Bache helped bring American science into alignment with the professional nature of its European counterpart. In addition, Bache fostered the reform of public education in America.

On July 19, 1806 Alexander Dallas Bache was born into one of Philadelphia's elite families. The son of Richard Bache and Sophia Dallas, he was Benjamin Franklin's great-grandson, nephew to George Dallas (vice president under James K. Polk), and grandson to Alexander James Dallas (secretary of the treasury under James Madison). In 1821, Bache was admitted to the United States Military Academy at the age of 15, graduating first in his class four years later. He remained at the Academy for an additional two years to teach mathematics and natural history. While serving as a lieutenant in the Army Corps of Engineers, working on the construction of Fort Adams in Newport, R.I., he met Nancy Clarke Fowler whom he would later marry.

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