1 | CHCX | Cedar Heights Clay Co. | added 4/1969; 4/1970-1/1980; eliminated 4/1981 | | NAKINA |
2 | CHCX | Chapman Chemical Co. | added 4/1959; 4/1961; eliminated 10/1964 | | NAKINA |
3 | CHCX | Chapman Chemical Co. | Apr-61 | | NRHS |
4 | CHCX | Cedar Heights Clay Co. | added 4/69; 4/70-1/80; eliminated 4/81 | | NRHS |
5 | CHCX | *CHAPMAN CHEMICAL CO. | | | PWRC |
6 | CHCX | *CEDAR HEIGHTS CLAY CO. | | | PWRC |
7 | CHCX | *CHEHALIS & CENTRALIA RAILROAD ASSOCIATION | | | PWRC |