There are 3 titles associated with this firm.

@book{ wphp_15823
  author={Sherwood,Mary Martha},
  year={1829},
  title={The Lady of the Manor. Being a Series of Conversations on the Subject of Confirmation. Intended for the Use of the Middle and Higher Ranks of Young Females. By Mrs. Sherwood, Author of "Little Henry and his Bearer," &c. &c. In Seven Volumes.},
  publisher={J. Towar & D.M. Hogan \& },
  address={Philadelphia},    }
@book{ wphp_16619
  author={Bray,Anna Eliza},
  year={1831},
  title={The Talba, or Moor of Portugal. A Romance. By Mrs. Bray, Author of "The White Hoods," "The Protestant," "Fitz of Fitz-Ford," &c. &c. In Two Volumes.},
  publisher={James and John Harper [Cliff Street] \& H.C. Carey and I. Lea \& John Grigg \& },
  address={New York},    }
@book{ wphp_15827
  author={Sherwood,Mary Martha},
  year={1831},
  title={The Lady of the Manor. Being a Series of Conversations on the Subject of Confirmation. Intended for the Use of the Middle and Higher Ranks of Young Females. By Mrs. Sherwood, Author of "Little Henry and his Bearer," &c. &c. In Seven Volumes.},
  publisher={J. Towar & D.M. Hogan \& Hogan & Co.},
  address={Philadelphia},    }