I now think my Herman Christian Meyer could have been from Falkenhagen, Seegefeld, Brandenburg. On his marriage certificate (in England) he gave his father as Petor Friedrich Meyer, an architect. I have only found a single reference to a man of his father's name, and this was in Falkenhagen, where he married Anna Louise Ribbitz. I have found the baptism records for a number of children born illigitimately to Anna, and some with Petor Friedrich Meyer named as the father. As yet I have not found a baptism for Herman. He too may have been illigitimate.