From the 1851 census, recorded here:
http://www.rootsweb.com/~cotswold/alvington51.txt
CHALLENGER George 35 Blacksmith Somerset Clutton ????
Caroline 33 Wollaston
George 4 Alvington
If my calculations are right, this George Challenger was born in Clutton around 1816?
I don't have himrecorded anywhere, but he might fit in with someone...