Cooney's discovery of silver and copper ore
in the Mogollon mountains led to the establishment of mining camps in the
area, notably those of Mogollon and Cooney.
After his death, his brother, Captain Michael Cooney, came from New Orleans
to take over his mine. Unfortunately, the other Cooney died somewhat fatefully
as well, while searching for a lost gold mine in the Mogollon mountains.
The canyon where his body was found has been named Cooney Canyon. The lost
mine has never been rediscovered, if it ever even existed.