Martha Silvey m. John Griswold son of Simeon Griswold and Ann Hutchins, around 1810-1820.John was born in 1788 assume Martha Silvey was born approx. 1790-1800. Children included Clara, Martha, George, Charles and John Griswold.John & Martha lived in Detroit, Michigan, however, it seems that John was born in New York and Martha may have been born in Massachusetts or someplace other than Michigan. I have no information about Martha Silvey's origins. If anyone out there knows of this Martha Silvey, I would appreciate source information.Thank you.