The Disappearance of Charles McCullar

1. Charles McCullar Crater Lake — Mysterious Stories Blog — StrangeOutdoors.com.
2. Crater Lake News Archives.
3. Guide to the NPS Park Reports Collection (U.S. National Park Service).
4. In 1975, Charles McCullar, 19-year-old aspiring photographer, was reported missing after presumably hiking through Crater Lake, OR. A year later, his broken and damaged skeletal remains were accidentally found by two hikers. : r/UnresolvedMysteries - Reddit.
5. Land use and land cover, 1974, Crater Lake, Oregon | U.S. Geological Survey - USGS.gov.
6. MCCULLAR, CHARLES - The Black Vault.
7. More praise for The Beast in the Garden.
8. Mr. McCullar's missing person documents - A Good Man Is Hard to Find -- My Search for Ronald H. Tammen, Jr..
9. Smith History - 128 News from 1975 Water Troubles - Crater Lake Institute.
10. The Missing Man Who "Melted Into The Ground" - Charles McCullar (PART 1).

The Cowden Family Murders

1. But I Trusted You Book Summary by Ann Rule - Shortform
2. Cowden family murders - Wikipedia
3. Cowden family murders — Grokipedia
4. Inside The Unsolved 1974 Cowden Family Murders - Grunge
5. Investigative Case Study: The 1974 Cowden Family Murders
6. Oregon State Police : Cold Case Unit
7. STATE OF OREGON v. DWAIN LEE LITTLE: DISPOSITION FROM THE JUVENILE COURT - HeinOnline
8. State v. Little :: 1965 :: Oregon Supreme Court Decisions - Justia Law