# Relationship history for MSHA mine 4606061

Current hierarchy: **Farley James H → Logan Coals Inc → #3**

- 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

- **controller_controls_mine:** Harvey W T → #3; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Logan Coals Inc → #3; 1979-08-01 to 1988-11-09; source msha-controller-operator-history
- **controller_controls_operator:** Harvey W T → Logan Coals Inc; 1979-08-01 to 1988-11-09; source msha-controller-operator-history
- **operator_operates_mine:** Logan Coals Inc → #3; 1988-11-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Farley James H → #3; 1988-11-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Farley James H → Logan Coals Inc; 1988-11-10 to current/open; source msha-controller-operator-history