At the end of 19th century, I have a Margraf family living on Houston St., Manhattan. Their daughter Henrietta, married my grandfather Conrad J. Muth. They had one son, Conrad H., before Henrietta died in 1898 from the complications of a miscarriage. I have located an ad for the family business listed as Margraf & Germann. Does anyone know if there was an association between these two families beside business. I suspect there was at least one marriage, but would like confirmation, if possible.FYI- the Margrafs are buried in Lutheran Cemetery in Queens.