While researching my great-great-grandfather, F. W. WATERHOLTER/WATERHOELTER's burial records in Prospect Hill Cemetery, in Washington, DC, I found the name of Nellie Marie QUILL listed under his name along with the names of Henry, Frederick and Wilhelmine BRANDT. I have no idea who she is, who the BRANDTs are, or how they are connected with my great-great-grandfather.

Does anyone recognize these names?

Thanks!