F. W. Hardcastle

Project Gutenberg lists F. W. Hardcastle as a co-author of Santa Claus' Daughter: A Musical Christmas Burlesque in Two Acts, written with Everett Elliott. That appears to be the main work currently easy to confirm online.

Beyond that credit, reliable biographical details are scarce. I could not confidently verify F. W. Hardcastle's full name, life dates, or wider bibliography from dependable sources, so it is best to treat the author as little-documented rather than repeat uncertain claims.

For readers, that makes this author interesting in a different way: F. W. Hardcastle survives in the record chiefly through a playful Christmas theatrical piece, offering a small glimpse into the world of early popular entertainment.