There are 4 titles associated with this person.

@book{ wphp_21310
  author={Gray,James},
  year={1809},
  title={Present Duty. A Discourse, delivered on the 31st of December, 1808; which was observed, by concert, as a day of Public Thanksgiving and Prayer, in several of the churches in the City of Philadelphia. By James Gray, D. D. Pastor of the Associate Reformed Church. Published by the particular request of the Elders and Trustees of said Church.},
  publisher={},
      }
@book{ wphp_21309
  author={Gray,James},
  year={1810},
  title={A Dissertation, on the coincidence between the Priesthoods of Jesus Christ & Melchisedec, in three parts, in which the passages of Scripture relating to that subject, in the xiv. chapter of Genesis, the cx. Psalm, the v. vi. vii. chapters of the Epistle to the Hebrews, are explained. By James Gray, D. D.},
  publisher={},
  address={Philadelphia},    }
@book{ wphp_21111
  author={},
  year={1810},
  title={Extracts from the Minutes of the Proceedings of the Sixth General Synod of the Associate-Reformed Church, in North-America; Held at Philadelphia, on Wednesday, the 30th May, 1810, and continued by adjournment.},
  publisher={},
  address={Philadelphia},    }
@book{ wphp_21110
  author={},
  year={1812},
  title={Extracts from The Minutes of the Proceedings of the Ninth General Synod of the Associate Reformed Church in North America; Held at Philadelphia, on Wednesday, the 15th May, 1812, and continued by adjournment.},
  publisher={},
  address={Philadelphia},    }