# Relationship history for MSHA mine 3300944

Current hierarchy: **Kermit L  James; Richard  James Jr → James Brothers Coal Company → James Brothers Coal Company**

- 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:** James Brothers Coal Company → James Brothers Coal Company; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Richard  James Jr  et al → James Brothers Coal Company; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard  James Jr  et al → James Brothers Coal Company; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kermit L  James et al → James Brothers Coal Company; 1950-01-01 to current/open; source msha-controller-operator-history