# Relationship history for MSHA mine 1513069

Current hierarchy: **Deskins Jack D → Elkhorn Energies 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

- **controller_controls_mine:** M Lynn  Parrish → Mine No 1; 1979-09-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ray Mac Coal Company → Mine No 1; 1981-08-01 to 1982-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Mc Ghee James-Frank Justice Et Al → Mine No 1; 1981-08-01 to 1982-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Mc Ghee James-Frank Justice Et Al → Ray Mac Coal Company; 1981-08-01 to 1982-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Jaco Mining Company Inc → Mine No 1; 1982-11-01 to 1984-06-21; source msha-controller-operator-history
- **controller_controls_operator:** M Lynn  Parrish → Jaco Mining Company Inc; 1982-11-01 to 1984-06-21; source msha-controller-operator-history
- **operator_operates_mine:** Elkhorn Energies Inc → Mine No 1; 1984-06-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Deskins Jack D → Mine No 1; 1984-06-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Deskins Jack D → Elkhorn Energies Inc; 1984-06-22 to current/open; source msha-controller-operator-history