There are 2 titles associated with this person.

@book{ wphp_16805
  author={Campbell,Ann and Rush,Benjamin},
  year={1766},
  title={The sayings of Mrs. Ann Campbell immediately previous to her death, taken verbatim, as she uttered them.},
  publisher={},
  address={Philadelphia},    }
@book{ wphp_21348
  author={Hillary,William and Rush,Benjamin},
  year={1811},
  title={Observations on the Changes of the Air, and the Concomitant Epidemical Diseases in the Island of Barbadoes. To which is added, A treatise on the Putrid Bilious Fever, commonly called The Yellow Fever; and such other diseases as are indigenous or endemial, in the West India islands, or in the torrid zone. By William Hillary, M. D. With notes, by Benjamin Rush, M. D. professor of the institutes and practice of medicine in the University of Pennsylvania.},
  publisher={Benjamin and Thomas Kite},
  address={Philadelphia},    }