There are 2 titles associated with this firm.

@book{ wphp_12996
  author={Barnard,Frances Catherine},
  year={1835},
  title={Conversations at the work-table. By a mother.},
  publisher={Thomas Hamilton, William Adams, and Co. \& W. Simpkin and R. Marshall \& Whittaker and Co. \& Longman, Rees, Orme, Brown, Green and Longman \& Baldwin and C. Cradock \& Charles Tilt \& John William Parker \& Henry Mozley and Sons \& Henry Washbourne \& John Stacy \& Samuel Darton and Robert Harvey [1833-38] \& Orr and Smith \& },
  address={London},    }
@book{ wphp_11643
  author={Welsh,Mary Ann Wilson and Twamley,Louisa Anne and Tighe,Mary and Taylor,Jane and Symmons,Caroline and Sheridan,Frances Chamberlaine and Robinson,Mary and Landon,Letitia Elizabeth and Jewsbury,Maria Jane and Hemans,Felicia and Bowles,Caroline and Barbauld,Anna Laetitia},
  year={1835},
  title={Flora and Thalia; or Gems of Flowers and Poetry; being an Alphabetical Arrangement of Flowers, with Appropriate Poetical Illustrations, Embellished with Coloured Plates. By A Lady.},
  publisher={Henry Washbourne \& },
  address={London},    }