No one calls it Frenchman.
And it's just a hill on the east side. The real mountains are north (Sheep Range) and west (Spring Mts).
I lived on Sunrise when stationed @ Nellis back in the 80s (Reagan Years), went back there about ten years ago and the once nice neighborhood had turned into a total ghetto.
Sunrise Mountain may be puny compared with, say, Mt. Charleston, but when you first see it driving up from the south, you realize that you have arrived in Las Vegas.