I am looking for the complete birth date for Susan Louisa BARTLETT, b. Plymouth, MA in 1815 of Capt. William and Susan (THACHER) BARTLETT.She m. Charles Otis BOUTELLE, who was prominent in the U.S. Coast and Geodetic Survey.Her brother was John BARTLETT, author of "Bartlett's Familiar Quotations."The 1910 Thacher-Thatcher Genealogy gives just her birth year, 1815, and birthplace, as does the NYG&B Record, Vol. XLVI, p. 29, and Vol. XLVII, p. 272.Her granddaughter, Marianna Hedge BOUTELLE, gave her birth year as 1816.She died at Norfolk, VA on 26 Dec 1883, as reported in the NEH&G Register, Vol. XLVIII, p. 337.Her gravestone at Norfolk, which gives her birthplace as Plymouth, MA, but has no age or birth date, records that "She went about doing good."