# Relationship history for MSHA mine 1514739

Current hierarchy: **Pmc Holding & Investment Company Inc → G D & M Coal Company Inc → 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Daniel (Jeff) Paul → No 1; 1981-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jeffco Mining → No 1; 1984-07-01 to 1985-03-25; source msha-controller-operator-history
- **controller_controls_operator:** Daniel (Jeff) Paul → Jeffco Mining; 1984-07-01 to 1985-03-25; source msha-controller-operator-history
- **operator_operates_mine:** G D & M Coal Company Inc → No 1; 1985-03-26 to 1986-03-31; source msha-controller-operator-history
- **controller_controls_mine:** George  Newsom → No 1; 1985-03-26 to 1986-03-31; source msha-controller-operator-history
- **controller_controls_operator:** George  Newsom → G D & M Coal Company Inc; 1985-03-26 to 1986-03-31; source msha-controller-operator-history
- **operator_operates_mine:** G D & M Coal Company Inc → No 1; 1986-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pmc Holding & Investment Company Inc → No 1; 1986-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pmc Holding & Investment Company Inc → G D & M Coal Company Inc; 1986-04-01 to current/open; source msha-controller-operator-history