Elizabeth, Rose and the others have made such a thorough search of OH Census that it is likely that Aaron Crosby was called on a mission to another State. Have you made a search for his wife's family was it Auter or Anter? There is a mention of an Angelican Minister Aaron Crosby in "Indian Castle Church, Herkimer Co NY online at http://www.fortklock.com/ICrecords.htm If this is your Aaron and NY is his Home Base, he may have returned to NY. Beverlee > Hi Elizabeth, I am not finding him in the 1850 in OH. If this is the same > Aaron as in the 1830 then he would be 70 - 80 yrs old--perhaps he is living > with a son.