My German grandfather's birth name was Rock. His mother's maiden was Meerholz. They died together in a distant accident when my grandfather was a child and he was taken for adoption by his mother's family, and his name changed to the matrinominal Meerholz, which may have been shortened on arrival in America to Merholz. (Please, no T)
Playing Around with Google Earth I came across the name Meerholz in a town in Germany. Meerholz translates to sea wood in English and I have sometimes used the pseudonym B.J. Driftwood. Looking the town up on Google, I found that a vacant plot of ground in this little village now stands, after Bulgaria and Romania joined on January 1, at the geographical center of the European Union.
Make of it what you will.