- Script
- Harold Gray
- Pencils
- Harold Gray; Robert Leffingwell
- Inks
- Harold Gray; Robert Leffingwell
- Colors
- ?
- Letters
- ?
- Genre
- western-frontier
- Characters
- Little Joe; Utah; Mrs. Oak; Don Jose (villain)
- Synopsis
- Don Jose builds a hacienda on a mesa and tries to use his band of bandits to force Little Joe and his family off their ranch.
- Reprints
- from Little Joe (Chicago Tribune-N.Y. News Syndicate) Sunday strips from 1937.07.26, 1937.09.20, 1937.11.29-1937.12.20
Story is highly edited. Many missing strips were likely left out because of excessive violence. Story begins on inside front cover in black, red, and white. Each Sunday strip is rearranged to fit on the comic page, but no panels are dropped.
- Script
- Harold Gray
- Pencils
- Harold Gray; Robert Leffingwell
- Inks
- Harold Gray; Robert Leffingwell
- Colors
- ?
- Letters
- ?
- Genre
- western-frontier
- Characters
- Little Joe; Utah; Mrs. Oak; Black Jack Smith
- Synopsis
- An "outlaw with a heart of gold" escapes from a posse by hiding at the Oaks' ranch.
- Reprints
- from Little Joe (Chicago Tribune-N.Y. News Syndicate) Sunday strips from 1937.01.24-1937.02.14, 1937.02.28-1937.03.21
Sunday pages are reformatted to fit comic book pages, but no panels are dropped.
- Script
- Harold Gray
- Pencils
- Harold Gray; Robert Leffingwell
- Inks
- Harold Gray; Robert Leffingwell
- Colors
- ?
- Letters
- ?
- Genre
- western-frontier
- Characters
- Little Joe; Utah; Mrs. Oak
- Synopsis
- Utah and Little Joe run off ornery sheep herders who have brought their sheep to the valley.
- Reprints
- from Little Joe (Chicago Tribune-N.Y. News Syndicate) Sunday strips from 1937.03.28-1937.04.18
Each Sunday strip is rearranged to fit on the comic page, but no panels are dropped.
- Script
- Harold Gray
- Pencils
- Harold Gray; Robert Leffingwell
- Inks
- Harold Gray; Robert Leffingwell
- Colors
- ?
- Letters
- ?
- Genre
- western-frontier
- Characters
- Little Joe; Utah; Mrs. Oak; Judge Blurb (villain)
- Synopsis
- Conman Blurb sells claims on free range land in the valley to farmers who establish the village of Eutopia. But drought and lack of ground cover cause massive dust storms that ruin both the farmers and their land.
- Reprints
- from Little Joe (Chicago Tribune-N.Y. News Syndicate) Sunday strips from 1937.04.25-1937.09.05
Each Sunday strip is rearranged to fit on the comic page, but no panels are dropped. The story is obviously inspired by the Great Plains "Dust Bowl" of the mid-1930s.
- Script
- Harold Gray
- Pencils
- Harold Gray; Robert Leffingwell (signed as Leffingwell)
- Inks
- Harold Gray; Robert Leffingwell (signed as Leffingwell)
- Colors
- ?
- Letters
- ?
- Genre
- western-frontier
- Characters
- Little Joe; Utah; Mrs. Oak
- Synopsis
- Using labor from the destitute farmers and lumber from deserted houses, a new ranch house for the Oaks is built at the end of "Hidden Valley."
- Reprints
- from Little Joe (Chicago Tribune-N.Y. News Syndicate) Sunday strips from 1937.09.12-1937.10.24
Each Sunday strip is rearranged to fit on the comic page, but no panels are dropped.
- Script
- Harold Gray
- Pencils
- Harold Gray; Robert Leffingwell (signed as Leffingwell)
- Inks
- Harold Gray; Robert Leffingwell (signed as Leffingwell)
- Colors
- ?
- Letters
- ?
- Genre
- western-frontier
- Characters
- Little Joe; Utah; Mrs. Oak; Three-Card Al
- Synopsis
- After shooting a gang of bank robbers, Utah is elected sheriff. He later wipes out a gang of cattle rustlers.
- Reprints
- from Little Joe (Chicago Tribune-N.Y. News Syndicate) Sunday strips from 1937.10.31-1937.12.19
Each Sunday strip is rearranged to fit on the comic page, but no panels are dropped.
- Script
- Harold Gray
- Pencils
- Harold Gray; Robert Leffingwell (signed as Leffingwell)
- Inks
- Harold Gray; Robert Leffingwell (signed as Leffingwell)
- Colors
- ?
- Letters
- ?
- Genre
- western-frontier
- Characters
- Little Joe; Utah; Mrs. Oak; Three-Card Al
- Synopsis
- Mr. Drill builds a hydro-electric dam on the Oaks' ranch to generate power for an airplane guidance beacon.
- Reprints
- from Little Joe (Chicago Tribune-N.Y. News Syndicate) Sunday strips in this order: 1937.12.16-1938.01.30, 1938.03.06-1938.03.27, 1938.02.06, 1938,02.13, 1938.02.27, 1938.02.20
Each Sunday strip is rearranged to fit on the comic page, but no panels are dropped. Strips are printed out of order. 1938.02.27 is the inside back cover and is printed in black, red, and white. 1938.02.20 is the back cover.