GRABEN Hard To Find Surnames › Category: G Surnames › GRABEN 0 Vote Up Vote Down Deborah Gabriel asked 7 years ago Surname may have originally been Graben, Grebe, Greban. Want to find German relatives of Louis, Lewis Graben, who immigrated to the U.S. in the 1850\\\'s. He served in the 31st Alabama Infantry, CSA. He settled and farmed in Clay County, AL. AD