# Relationship history for MSHA mine 4601284

Current hierarchy: **Mc Coy Jeffrey S → Chicasaw Mining Inc → Mine No 1**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Laxare Inc → Mine No 1; 1950-01-01 to 1974-12-16; source msha-controller-operator-history
- **controller_controls_mine:** Ferris C W → Mine No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ferris C W → Laxare Inc; 1950-01-01 to 1974-12-16; source msha-controller-operator-history
- **controller_controls_mine:** Cyprus Amax Minerals Company → Mine No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cannelton Industries Inc → Mine No 1; 1974-12-17 to 1988-10-16; source msha-controller-operator-history
- **controller_controls_operator:** Cyprus Amax Minerals Company → Cannelton Industries Inc; 1974-12-17 to 1988-10-16; source msha-controller-operator-history
- **operator_operates_mine:** Chicasaw Mining Inc → Mine No 1; 1988-10-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mc Coy Jeffrey S → Mine No 1; 1988-10-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Coy Jeffrey S → Chicasaw Mining Inc; 1988-10-17 to current/open; source msha-controller-operator-history