To date I have found the following variations of spelling of surnames that may find their roots in "Eichelberger":
Aeigelbarger
Eagleberger
Ecalbarger/Ecelberger
Echelbarger/Echelberger
Eckelbecker
Eckelbarger/Eckelberger
Eckenbarger/Eckenberger
Eckelberry
Eglburger
Egleberger
Eickleberry
Eiklebarger
Eichelburger
Eichleberger
Eickelberger
Eikelbarner/Eikelberner
Eikelberger
Eikleberger
Ekelbarger
Ekleberry
Eichenberger
Igleburger
Ikelbargar
Ikenberger
More on these can be found on my web site; copy and paste the following URL into your browser "address" box...and enjoy!
http://genweb.net/~jodiem