While the happenings in On the Verge (Or the Geography of Yearning) are wholly fictional, the three women in the play might be loosely based on real, amazing, pioneering women.
When asked where the idea for On the Verge came from, Mr. Overmyer said:
''I first conceived of On the Verge while reading A Long Desire, Evan S. Connell's book about travelers. I was particularly taken with a chapter about Victorian lady explorers, and I learned that the author had gotten his information from another book, Victorian Lady Travellers, by Dorothy Middleton. One of the things that interested me in these women was the way they would go out and have amazing, hair-raising adventures and then come back to England or America and be as conservative as if they had never left home. Many of them opposed women wearing trousers, smoking tobacco or even having the vote.
''For the rhythms and vocabulary I did a lot of reading of Victorian novels, and the play contains bits and pieces from actual journals and letters, though many of the anecdotes are distorted and fictionalized. Another important inspiration was The Land That Time Forgot, Arthur Conan Doyle's melodramatic science-fiction novel about Englishmen who become shipwrecked on an unknown island. When they ascend its high plateau, they find that all time exists at once there - that dinosaurs coexist with saber-toothed tigers.''
Fanny Bullock Workman. Mental Floss says: Traveling with her husband William Hunter Workman, M.D., this American mountaineer broke a string of women's altitude records while becoming a noted geographer, cartographer, and travel writer. The Workmans both came from wealth, enabling them to go on extravagant and arduous trips, like bicycle rides through Spain and India and treks up the Himalayas.
A shameless self-promoter, she earned a reputation for riling her rivals. But her dedication to detailing her accomplishments with precise measurements and thorough documentation meant she could back up her big mouth. A compelling orator, Fanny was the first American woman to lecture at the Sorbonne in Paris, and the second female explorer ever allowed to address—and later join—the Royal Geographical Society of London.
The 30+ books she wrote about her travels in Asia and spiritual adventures among the Sikh and Buddhist communities of India and Nepal inspired subsequent generations. She was the first western (and female) explorer allowed into the typically forbidden Tibet, had the unprecedented opportunity to quiz the Dalai Lama at length, and was fully adopted by many of the royal spiritualist communities of the Far East.
Throughout the 1890s, she traveled extensively on her own, often living among the cultures which had been stigmatized by a British society intent on maintaining their status as elite by emphasizing the savage nature of African traditions. Mary's positive exposes of real African life and negative journalism critiquing white treatment of black cultures resulted in a flurry of improvements towards improving colonial life and encouraging local rule.