Have you tried searching under the spelling with a "u" instead of an "e"?
I have found that my gr-gr grandfathers name is spelled with an "e"
but his ancestors spelled their name with a "u". I assume this came about
because a lot of people could not read or write and when a census was
taken, whoever was taking the census spelled the names the way they
sounded to them. There are forums on Rootsweb and Genforum for Eachus.