Can Anyone Provide Info on C&O Whistles?

Hi everyone. I like to have all of my steam locomotives to have their own unique whistle recording. One of the railroads of which I have many Trainz whistle recordings of is the Chesapeake & Ohio. I know that the road used 1-chime hooters, 6 chimes and even a Crosby 3 chime.

I have some questions about the whistles used by the C&O. What engines on the road used the Crosby? Were any freight locomotives equipped with a 6 chime?