There are 5 titles associated with this person.

@book{ wphp_19162
  author={Ramsay,David and Ramsay,Martha Laurens and Laurens,Henry},
  year={1811},
  title={Memoirs of the life of Martha Laurens Ramsay, who died in Charleston, S.C. on the tenth of June, 1811, in the fifty-second year of her age;  with an appendix, containing extracts from her diary, letters, and other private papers, and also from letters written to her, by her father, Henry Laurens, 1771-1776. By David Ramsay, M.D.},
  publisher={},
  address={Philadelphia},    }
@book{ wphp_19158
  author={Ramsay,David and Ramsay,Martha Laurens and Laurens,Henry},
  year={1812},
  title={Memoirs of the life of Martha Laurens Ramsay, who died in Charleston, S.C. on the 10th of June, 1811, in the 52d year of her age. : With an appendix, containing extracts from her diary, letters, and other private papers. And also from letters written to her, by her father, Henry Laurens, 1771-1776. By David Ramsay, M.D.  Second Edition.},
  publisher={},
  address={Charlestown},    }
@book{ wphp_19159
  author={Ramsay,David and Ramsay,Martha Laurens and Laurens,Henry},
  year={1812},
  title={Memoirs of the life of Martha Laurens Ramsay, who died in Charleston, S.C. on the 10th of June, 1811, in the 52d year of her age. : With an appendix, containing extracts from her diary, letters, and other private papers. And also from letters written to her, by her father, Henry Laurens, 1771-1776. By David Ramsay, M.D.  Third Edition.},
  publisher={},
  address={Boston},    }
@book{ wphp_19163
  author={Ramsay,David and Ramsay,Martha Laurens and Laurens,Henry},
  year={1813},
  title={Memoirs of the life of Martha Laurens Ramsay, who died in Charleston, S.C. on the tenth of June, 1811, in the fifty-second year of her age;  with an appendix, containing extracts from her diary, letters, and other private papers, and also, from letters written to her, by her father, Henry Laurens, 1771-1775. By David Ramsay, M.D.},
  publisher={Thomas T. Skillman},
  address={Lexington},    }
@book{ wphp_19161
  author={Ramsay,David and Ramsay,Martha Laurens and Laurens,Henry},
  year={1814},
  title={Memoirs of the life of Martha Laurens Ramsay, who died in Charleston, S.C. on the 10th of June, 1811, in the 52d year of her age. : With an appendix, containing extracts from her diary, letters, and other private papers. And also from letters written to her, by her father, Henry Laurens, 1771-1776. By David Ramsay, M.D. Fourth Edition...Second Armstrong's Edition.},
  publisher={},
  address={Boston},    }