Harry Callahan
main character in the "Dirty Harry" films
Callahan's
bar in a series of books by Spider Robinson, run by Mike Callahan
Callahan
A teacher/lawyer in film "Legally Blonde"
First appeared in America in the late 19th century. It is probably a blend of Leah and Beatrice
though it may also have been inspired by the plant name Liatris. Often called "blazing star" or "gay,feather," the Liatris is native to North America and Mexico.