This sounds lke it might be my family. I have a John W. listed as "born at sea" in 1832. He was the son of Martin Ehrhardt, wife Anna Elizabeth. Martin born in Germany about 1810 and died in Salisbury, Chariton CO, MO 24 June 1896. His wife Anna was also born abt 1810 and died 31 May 1884, also buried in Salisbury. John W had siblings, I don't know if I have all of them, but the ones I have are Henry b 26 Aug 1838 VA; Mary b abt 1841 VA; George b 1844 ( my ancestor) and Elizabeth b abt 1848 in MO. Let me know if you think this might be the family you are looking for, I have a lot more information, if you think it is I will be glad to share the info with you. Good Luck!