| 1 | INSX | International Shoe Co. (General American Tank Car Corp.) | 7/1935 | | NAKINA |
| 2 | INSX | International Shoe Co., Wilkes Tannery | 7/1932 | | NAKINA |
| 3 | INSX | International Shoe Co., Burke Extract Plant | 7/1923-7/1930 | | NAKINA |
| 4 | INSX | *INTERNATIONAL SHOE CO. | | | PWRC |
| 5 | INSX | +INDEPENDENT SALT COMPANY | | | PWRC |
| 6 | INSX | Independent Salt | | | RSRV |
| 7 | INSX | INDEPENDENT SALT COMPANY | | | SCAC4 |
