There are 2 titles associated with this firm.

@book{ wphp_23730
  author={Sutton,William},
  year={1714},
  title={A sermon preach'd at the cathedral-church of Norwich, on Monday, March the 8th 1713/14. Being the anniversary of Her Majesty's happy accession to the crown. By William Sutton, M.A. and vicar of Saxthorpe, in Norfolk.},
  publisher={Robert Knaplock \& },
  address={London},    }
@book{ wphp_25824
  author={Clayton,Humfrey},
  year={1737},
  title={A true account of the doctrine of Christ, and of the primitive church, with respect to the Eucharist. Occasion'd by a conference with the author, attack'd by a Romish priest, and continu'd by letters. ... Also occasionally shewing the inconsistency of a late sacramentarian piece (call'd, A plain account of the nature and end of the sacrament of the Lord's Supper) ... Between Humphrey Clayton, ... and A. B. ... The second edition, with an additional supplement.},
  publisher={},
  address={London},    }