10/05/2026
Sallie Ann Clarke and John Green occupy distinct but connected places in cryptozoology history. Their paths crossed through the Lake Worth Monster, a half-man, half-goat creature reported near Fort Worth, Texas, in 1969.
Their connection
In 1976, Canadian journalist and Bigfoot researcher John Green traveled across North America to investigate regional cryptid reports. During his time in Texas, Sallie Ann Clarke was the only local investigator he met.
Clarke stood out in a field largely dominated by men. Her research into the Lake Worth Monster had begun several years earlier, after the 1969 reports drew widespread public and media attention.
Sallie Ann Clarke
Sallie Ann Clarke (1929–2009) was a writer and private investigator who lived in Benbrook, Texas. She interviewed witnesses during the Lake Worth Monster sightings and, in September 1969, self-published The Lake Worth Monster of Greer Island.
Clarke initially approached the subject with some humor. She later said she had encountered the creature herself on more than one occasion, leading her to regard the reports as genuine history rather than merely a playful story.
John Green
John Green (1927–2016) was a pioneering Canadian Bigfoot researcher and the author of several influential books, including Sasquatch: The Apes Among Us. Over decades of research, he compiled thousands of reports involving sightings, tracks, and other physical evidence from across North America. He organized and mapped this material to look for patterns in the Sasquatch phenomenon.
This rare photograph shows John Green visiting Sallie Ann Clarke at her home in 1976. Green was touring North America to document Sasquatch reports. The two stand beside a life-size drawing of the Lake Worth Monster by Bobby Brooks.
