I have a Great Grandfather William F. Brandstaedter, born in Germany in Jun 1849, married to Rosa born in Germany in Aug 1854. William was Nationalized on Nov 28,1883in Baltimore, MD. They resided in Hanover.PA.
In the 1900 census they name was spelled Brandtsletter. On the grave stone in Mount Olivet Cemetery in Hanover, PA it's listed as Brandstaedter.