Authors of children's books published by Gardner, Darton included Alice Corkran, F. J. Harvey Darton, Mrs. E. M. Field, John Masefield, Robert Hope Moncrieff, E. Nesbit, William Rainey, Francesca Maria Steele, and Enys Tregarthen.

Authors of ecclesiastical texts included Herbert Bury, G. K. Chesterton, Joseph Clayton, Percy Dearmer, Hensley Henson, Alan George Sumner Gibson, Henry Twells, and James Charles Wall.

Other authors published by the firm included Jill Allgood, E. Davenport Cleland, S. R. Crockett, Oliver Goldsmith, Katherine Purdon, and William Henry Macleod Read.

At the time, Wells Gardner, Darton & Co. published many compilations of older stories, including reissues of the chapbook The Seven Champions of Christendom (1901) and compilations of stories from Chaucer's The Canterbury Tales.

Illustrator Denis McLoughlin painted book covers for Gardner, Darton during World War II.