Thank you Faldage. I didn't know there are three Houghs in the UK. Can you tell me please how they are pronounced?
Google says there are several Houghs in the US:
Hough, Mississippi, MO 63834, US
Hough, Carroll, AR 72638, US
Hough, Texas, OK 73942, US
Hough, Adkins, Bexar, TX 78101, US
Hough, Augusta, Woodruff, AR 72006, US
Hough, Vancouver, Clark, WA, US.

I'd be interested to know how (Hough?) they are pronounced.
By the way, it's Cholmondeley not Chomondeley.
On the subject of pronunciation I used to cringe when I heard George W. Bush say "Isreal" for "Israel". Could the man not read?