There are 2 titles associated with this firm.

@book{ wphp_24326
  author={Kettilby,Mary},
  year={1724},
  title={A collection of receipts in cookery, physick and surgery. Part II. Containing Likewise, a Great Number of excellent Receipts, for Preserving and Conserving of Sweet Meats, &c. By several hands. The Second Edition.},
  publisher={Mary Kettilby \& Richard Wilkin},
  address={London},    }
@book{ wphp_22103
  author={Unknown,},
  year={1749},
  title={A collection of above three hundred receipts in cookery, physick and surgery; for the use of all good wives, tender mothers, and careful nurses. By several hands. The seventh edition. To which is added, a second part, containing a great number of excellent receipts, for Preserving and Conserving of sweet-meats, &c. and a new index to both parts. Published by Mrs. Mary Kettilby.},
  publisher={Mary Kettilby \& Henry Lintot},
  address={London},    }