[citation needed] In 1917, Campbell wrote and illustrated his own book, The Funnyfeathers (E. P. Dutton), featuring the adventures of the Dinky Duckings, Panty Banty, Pidgy the Poet, Daffy Duck and Old Crooky Crow.
Other books by Campbell included Dippy Doodlebug, Bizzy Izzy Humbug, Duck and Applesauce, Dicky Bird's Diary and Merry Murphy.
He illustrated the cartoon strip, "Uncle Wiggily's Adventures" with Howard R. Garis and created "Piggy Pigtail", "Paddy the Pup", "Dippy Doodlebug", "Bizzy Izzy Humbug", "The Dinky Ducklings", "Duck and Applesauce", "Dicky Bird's Diary," "Merry Murphy" and more on his own.
He is buried in Oak Woods Cemetery, Chicago, Cook County, Illinois.
[citation needed] Campbell's Uncle Wiggily illustrations were the main influence on Chris Wedge's short film Bunny which won the Academy Award for Animated Short Film for 1998 as well as a Golden Nica at the Prix Ars Electronica.