There are 2 titles associated with this firm.

@book{ wphp_23114
  author={Grey,Elizabeth},
  year={1707},
  title={A True Gentlewomans Delight. Wherein is Contained all manner of cookery: Together with Preserving, Conserving, Drying, and Candying. Very necessary for all ladies, and gentlewomen. Published by W. J. gent.},
  publisher={Henry Mortlock},
  address={London},    }
@book{ wphp_23047
  author={Grey,Elizabeth},
  year={1708},
  title={A choice manual, or, rare and select secrets in physick and chirurgery. Collected, and practised by the Right Honourable, the Countess of Kent, Late Deceased. Whereto are added several Experiments of the Virtues of Gascon-Powder, and Lapis contra Yarvam, by a Professor of Physick. As also most Exquisite ways of Preserving, Conserving, Candying, &c. The 21st edition, with additions.},
  publisher={Henry Mortlock},
  address={London},    }