There are 7 titles associated with this firm.

@book{ wphp_17696
  author={H.,E.},
  year={1810},
  title={The fatal cabinet; or The profligate mother. Two volumes in one.},
  publisher={Isaiah Thomas, Jun. \& },
  address={Boston},    }
@book{ wphp_15403
  author={More,Hannah},
  year={1810},
  title={The shepherd of Salisbury Plain. In two parts. To which is added, The sorrows of Yamba; or The Negro woman's lamentation.},
  publisher={Samuel Avery},
  address={Boston},    }
@book{ wphp_19402
  author={Rowson,Susanna},
  year={1811},
  title={Charlotte Temple. A tale of truth. By Mrs. Rowson, Late of the New Theatre, Philadelphia; author of Victoria, the Inquisitor, Fille de Chambre, &c. Two volumes in one.},
  publisher={Samuel Avery \& },
  address={Boston},    }
@book{ wphp_19294
  author={Rowe,Elizabeth Singer},
  year={1811},
  title={Devout exercises of the heart, in meditation and soliloquy, prayer and praise. By the late pious and ingenious Mrs. Elizabeth Rowe. Reviewed and published at her request, by I. Watts, D.D.},
  publisher={Samuel Avery},
  address={Boston},    }
@book{ wphp_18336
  author={Lucas,Rachel},
  year={1811},
  title={Remarkable account of Mrs. Rachel Lucas, daughter of Mr. James Hinman, of Durham, (Conn.) as written by herself, and attested by her family and acquaintance.},
  publisher={},
  address={Boston},    }
@book{ wphp_19402
  author={Rowson,Susanna},
  year={1811},
  title={Charlotte Temple. A tale of truth. By Mrs. Rowson, Late of the New Theatre, Philadelphia; author of Victoria, the Inquisitor, Fille de Chambre, &c. Two volumes in one.},
  publisher={Samuel Avery \& },
  address={Boston},    }
@book{ wphp_19294
  author={Rowe,Elizabeth Singer},
  year={1811},
  title={Devout exercises of the heart, in meditation and soliloquy, prayer and praise. By the late pious and ingenious Mrs. Elizabeth Rowe. Reviewed and published at her request, by I. Watts, D.D.},
  publisher={Samuel Avery},
  address={Boston},    }