MacDonald served as a mentor to Lewis Carroll (the pen-name of Charles Lutwidge Dodgson); it was MacDonald's advice, and the enthusiastic reception of "Alice" by MacDonald's many sons and daughters, that convinced Carroll to submit "Alice" for publication. Carroll, one of the finest Victorian photographers, also created photographic portraits of several of the MacDonald children. MacDonald was also friends with John Ruskin, and served as a go-between in Ruskin's long courtship with Rose La Touche. While in America he was befriended by Longfellow and Walt Whitman.