Am looking for information about ancestors or siblings of Ludvig Friese (1819 to 1900) who married Wilhelmina Singler or Zenglar or Singer (1825 to 1894). They lived in Winona, Minnesota for some time. Their son August Heinrich Friese (1852 to 1927) was my great grandfather. I know nothing about anyone prior to Ludvig. Have a photo I would like to share to see if anyone recognizes them. Family lore says that August came from Stettin, Germany. I have pretty extensive information about families of all their children, but not their ancestors.