Researching Oatman in Oneida and Madison Counties in Central New York. Oatman was originally spelled as Ottman or Ottmann. This German name appears to have been Amercanized in the mid 1800's.Does anyone have any Oatman's that once were Ottman's or Ottmann's? Does anyone know what this name means or stands for? My guess is that it means "man who hunts otter".