The word "Glen" (with a capital "G") was copyrighted in 1948 by a D. McDonald, on behalf of his company of the same name. He and his wife Flora were involved in a potholing accident soon after that, however, and their bodies were never discovered. There is a stone on the site where they were last seen, and the inscription says

"...And now over their heads the green grass it does wave,
And the wild flowers nod over their desolate graves,
And the strangers that pass shed a tear as they go,
For Flora and Donald, the pride of Glen Co"