When visiting Hamburg a couple of years ago I went to the City Hall downtown and inquired about a possible cemetery list. They were most willing to help me find graves of several family members. At that time they had large maps of the cemetery and also a file card cabinet filled with cards listing every known person buried there. Perhaps you could write them and they could help find out if specific people are buried there? I don't know if their listings include those people with no stones. Just an idea... I also have Beason(Beeson)s and Browns in my ancestry also. Good luck. Kay