What has the author Frank M Du Mas written?

It seems you're asking about a writer named "Frank M Du Mas." While there are many authors who have written in the past, I couldn't find any record of a writer with that exact name.

It's possible that:

* The name is misspelled: Perhaps there's a similar name, like "Frank M. Dumas," or a slight variation in the spelling.

* The author is less known: It's possible this author wrote in a specific niche or under a different pseudonym.

* The information is incorrect: The source you got the name from could be mistaken.

To help me find the right author, could you please provide:

* Any other details you know about the author: Their full name, approximate time period they wrote in, any genres they wrote in, or even the titles of their works?

* The source of the information: Where did you hear about this author?

With more details, I can help you track down the writer and their works.