# Relationship history for MSHA mine 3603309

Current hierarchy: **Fox Francis & William Mc Donald → L C Enterprises → No 4 & No 5 Strip Mines**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** L C Enterprises → No 4 & No 5 Strip Mines; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Fox Francis & William Mc Donald → No 4 & No 5 Strip Mines; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fox Francis & William Mc Donald → L C Enterprises; 1950-01-01 to current/open; source msha-controller-operator-history