There are 2 titles associated with this firm.

@book{ wphp_19250
  author={Roche I,Regina Maria},
  year={1801},
  title={The maid of the hamlet. A tale. In two volumes. By Regina Maria Roche, author of "The children of the abbey, Vicar of Landsdown, Clermont, &c.},
  publisher={West and Greenleaf},
  address={Boston},    }
@book{ wphp_18072
  author={Keir,Elizabeth and Keir,Susanna Harvey},
  year={1802},
  title={Interesting memoirs. By a lady.  In two volumes.  The Fifth Edition.},
  publisher={Samuel Hall \& J. White & Co. \& Thomas and Andrews \& J. Boyle \& E. Larkin \& W. P. and Lemuel Blake \& John West [Boston] \& West and Greenleaf \& Manning and Loring},
  address={Boston},    }