Hi,
Anyone looking for "Elkerton" in the 1841 Census, and using the Ancestry indexes should search the following "variants" of the name :-
Elkerton, Hulgerton, Ellgutton, Elleatin, Ellgatten, Etherton*, Elkinton*, Elkutton, Elkatton, E Cherton, Elkeston, Ellerton *.
Those marked * also refer to other "real" names. but hide a few real Elkerton.
Don