There are 2 titles associated with this firm.

Barnard, Frances C. Conversations at the work-table. By a mother. London: 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, 1835.
Welsh, Mary, A., W., Louisa A. Twamley, Mary Tighe, Jane Taylor, Caroline Symmons, Frances C. Sheridan, Mary Robinson, Letitia E. Landon, Maria J. Jewsbury, Felicia Hemans, Caroline Bowles, and Anna L. Barbauld. 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. London: Henry Washbourne, 1835.