The book is available at Hathi Trust (I have not checked for other online sources).
Table of Contents
Part I. Beliefs and Ritual
1. The Role of Mythology 3
2. Cosmogony 14
3. Creek Cosmology 21
4. Souls 38
5. Spiritual Specialists 45
6. Miscellaneous Beliefs 50
7. Sacred Plants or Medicines 55
8. Sacred Time and Space 63
9. Ceremony and Ritual 68
10. Conclusions 83
Part II. Myths and Legends
Earth Diver Myths
Yuchi: Yuchi Origin
Yuchi: The Origin of Dry Land
Yuchi: How the Land Was First Made
Yuchi: The Creation of the World
Yuchi: Origin of the Earth
Yuchi: Origin of Light, Sun, Moon, and Stars
Yuchi: Origin of the Yuchi and the Ceremonies
Yuchi: Origin of the Yuchi
Yuchi: The Origin of the Yuchi
Tuskegee: Taskigi Origin
Alabama: The Creation of the Earth
Alabama: The Creation of the Earth
Emergence Myths
Alabama: Origin of the Indians
Alabama: Alabama Origin - Migration
Alabama: Alabama Origin
Alabama: Alabama-Koasati Origin
Alabama: Origin of the Alabama and Coushatta Tribes
Alabama: The Origin of the Alabama-Coushatta Indians
Muskogee: Kasihta Origin-Migration
Muskogee: Kasihta-Chicasaw-Coweta Origin-Migration
Muskogee: Coweta Origin-Migration
Muskogee: Tuckabatchee Origin-Migration
Choctaw: Choctaw Creation
Choctaw: Choctaw Creation
Migration Legends
Hitchiti: Hitchiti Origin
Hitchiti: Hitchiti Migration
Alabama: how the Alabamas Came Southward
Muskogee: Coosa Origin
Muskogee: Kasihta Migration
Muskogee: Kasihta-Chicasaw-Coweta Migration
Muskogee: Kasihta-Chicasaw-Coweta Migration
Choctaw: Chicasaw Migration
Choctaw: Choctaw Migration
Choctaw: Choctaw Origins
Choctaw: Choctaw Migration
Relationships Between the Tribes
Yuchi: Dispute among the Yuchi, Chickasaw, and Shawnee
Yuchi: Origin of the Other Tribes
Muskogee: Coweta-Tuckabatchee Alliance
Muskogee: Tukabahchee-Liwahali Alliance
Muskogee: Tukabatchee-Coweta Alliance
Muskogee: Tukabatchee-Coweta Alliance
Journeys into the Sky World
Yuchi: Four Men Go to the Land of Spirits
Yuchi: Four Men Visit the Spirit Land to Recover their Wives
Alabama: The Men Who Went to the Sky
Alabama: The Men Who West to the Sky
Alabama (Kosati): Two Brothers Who Tried to Restore their Sisters to Life
Alabama: The Men Who Went to the Sky
Alabama: A Journey to the Sky
Alabama: The Visit to the Sky
Visitors from the Sky World
Yuchi: Why the Cedar Tree is Red-Grainted
Yuchi: A Hunter Who Captured a Woman from the Sky
Alabama: The Celestial Skiff
Yuchi: Wind Seeks His Lost Sons and Kills the Iron Monster
Yuchi: Wind Seeks His Lost Sons and Kills the Iron Monster
Snake Man Legends
Yuchi: A Man Becomes a Snake
Hitchiti: The Man Who Became a Snake
Alabama: The Man Who Became a Snake
Alabama: The Woman Who Turned into a Snake
Muskogee: Coosa Flood (Snake-Man)
Muskogee: Tie Snake Legend
Muskogee: Coosa Flood (Water Cougar)
Muskogee: The Water Panther (Leopard)
Muskogee: The Man Who Became a Snake
Muskogee: The Man Who Became a Snake
Muskogee: The Man Who Became a Snake
Muskogee: The Man Who Became a Snake
Muskogee: The Man Who Became a Snake
Muskogee: Horned Serpent Legend
Muskogee: Legend of the Tie Snakes
Muskogee: The King of the Tie Snakes
Man-Eating Birds
Hitchiti: The Man-Eating Bird
Hitchiti: The Visit to the Nest of the Monster Bird
Hitchiti: A Strange Turkey Catches People and Carries Them Up to the Sky
Alabama: The Eagle's Nest
Alabama: The Man and the Eagle
Alabama: The Story of the Life Eater
Muskogee: The Story of the Turkey
Muskogee: Turkey, Turtle, and Rattlesnake
Tobacco and Corn
Yuchi: Tobacco Originates from Semen
Hitchiti: The Origin of Tobacco
Alabama (Koasati): A Story of the Origin of Corn and Tobacco
Muskogee: The Origin of Tobacco
Muskogee: The Origin of Tobacco
Muskogee: The Origin of Tobacco
Alabama (Koasati): Corn Woman
Muskogee: The Origin of Corn
Muskogee: The Orphan and the Origin of Corn
Muskogee: The Orphan and the Origin of Corn
Muskogee: The Orphan and the Origin of Corn
Contemporary Creek Myths and Legends
Hitchiti: Apalachicola Origin
Hitchiti: Apalachicola Origin
Muskogee: Creation of the Earth and Creek Origin
Hitchiti: Migration from the West, the Great Bird, and the Red Rat
Hitchiti: The Brother Who Became a Snake