Seule ou aux côtés d’autres illustratrices, elle illustre des ouvrages d’histoire naturelle. Particulièrement recherchée, elle travaille pour Orchidaceae of Mexico and Guatemala (1837-1841) de James Bateman (1811-1897) et divers livres de John Lindley (1799-1865), pour les revues The Botanist (1836-1842) de Benjamin Maund(en) (1790-1863)[2], Transactions of the Horticultural Society et Illustrated Bouquet (1857-1863)[3].
Le botaniste John Claudius Loudon (1783-1843) a écrit en 1831 dans le Gardener's Magazine qu’il apprécie ses «[…] high talents and great industry […] to be able to draw flowers botanically, and fruit horticulturally, that is, with the characteristics by which varieties and subvarieties are distinguished, is one of the most useful accomplishments of your ladies of leisure, living in the country. It is due to Mrs Withers of Grove Terrace, Lisson Grove, to state her talents for teaching these objects are of the highest order [...]»
↑The botanist; containing accurately coloured figures of tender and hardy ornamental plants with descriptions scientific and popular; intended to convey both moral and intellectual gratification ... conducted by B. Maund ... assisted by ... J.S. Henslow, London, R. Groomsbridge, 1836-1842
