William Weyand and his wife Katherine Spies arrived in Philadelphia in 1850. He was the son of Henry Weyand and his wife Anna Maria Quaad.William and Katherine's children appear to be born in Phila.William's daughter, Louisa(born 1855), arrived in Brooklyn, NY in 1935 with her husband, Rev. August Flamman. Whether the rest of the Weyand family settled in Brooklyn I don't know. Does this sound like your Weyand family?