Here's a little hardcover 95-page booklet published in 1918 that I added to the collection quite awhile ago. The art was created by Perce Pearce who started at the Disney Studio in February 1935. Pearce was employed as a story man, producer, and director.
The booklet tells the story of Seaman Si and is subtitled, "The Adventures of a Blue Jacket on the High Seas of Fun and Adventure." The art was created while Pearce was stationed at the U.S. Naval Training Station, Great Lakes, Illinois. At the time, Great Lakes was the largest naval training center in the world.
As an interesting side-note, Roy Disney trained at Great Lakes when he joined the service during World War I. More info on Roy's time in the service can be found in a previous post on my other blog Vintage Disney Collectibles.
The book is a bit on the fragile side, so I doubt I'll be scanning anymore images from the inside pages, so enjoy the above for now.