In 1876, Walker published a collection entitled Plays for Children.

Walker published several works on his finds.

Walker published his first book, Shots, in 2009.

Walker published his findings on the Internet along with the last checkpoint, inviting others to resume the quest using the number reached so far.

Walker published some work in the early numbers, the beginning of his poetic career.

To commemorate the event, Walker also wrote and published an autobiography.

Walker then published his arrangement of the hymn with the tune as it was sung to Beesley.

Walker has long been interested in the relationship between music, the black religious tradition, and social change, and published several books on this topic.

Walker will publish his findings next year in the journal Accident Analysis & Prevention.

During the early 20th century, Walker published catalogs of his art collection which he wanted to give to the city of Minneapolis.