General Sources

1. 1930 Census
   

   1930 Census - County, State - Date
   |f# |Name            |rel|h|v |r|f |s|r|ag|m|a |sch|rd |birth   |fath|mother  |eng|trade   |type|emp |w|u  |twp
   |169|Cohn, James B.  |H  |R|37|R|no|m|w|38|M|23|no |yes|Iowa    |Iowa|Iowa    |yes|Salesman|Milk|4590|w|yes|Denver
   |   |Cohn, Mildred E.|W  | |  | |  |F|w|41|m|26|no |yes|Nebraska|Ohio|Missouri|yes|none    |    |    | |   |
   |   |Cohn, Edgar L.  |Son| |  | |  |m|w|14|s|  |yes|yes|Iowa    |Iowa|Nebraska|yes|none    |    |    | |   |
   |   |Cohn, Robert B. |son| |  | |  |m|w|12|s|  |yes|yes|Iowa    |Iowa|Nebraska|yes|none    |    |    | |   |
   |   |Cohn, James R.  |son| |  | |  |m|w|7 |s|  |yes|yes|Colorado|Iowa|Nebraska|yes|none    |    |    | |   |