Does Bench Mark work?

Harold Miller wrote:
>
> One of my German ancestors participated in the building of the Reformed
> Church in Schoharie, NY now known as the Old Stone Fort. The names of the
> those who were involved in the construction were carved in the foundation
> stones. Some of them, including my ancestor William Dietz, have the letters
> BM after there name. I am trying to determin what that means in this case.
>
> One of the historians at the Fort said that they belived it was the Latin
> equivalent or English abbreviation for Benevalent Memory. The problem is he
> was not dead at the time his name was carved in the stone; thus ruling out
> this possible explanation.
>
> Any clues would be much appreciated.