# Relationship history for MSHA mine 1510461

Current hierarchy: **Miller Paul J → Express Coal Company Inc → No 1 Mine**

- 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:** Damron William E → No 1 Mine; 1974-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cargo Mining Company Inc → No 1 Mine; 1977-06-01 to 1979-04-15; source msha-controller-operator-history
- **controller_controls_operator:** Damron William E → Cargo Mining Company Inc; 1977-06-01 to 1979-04-15; source msha-controller-operator-history
- **controller_controls_mine:** Miller Paul J → No 1 Mine; 1978-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** B & H Coal Company → No 1 Mine; 1979-04-16 to 1979-10-17; source msha-controller-operator-history
- **controller_controls_mine:** Hurley Danny R & Sherman Blankenship → No 1 Mine; 1979-04-16 to 1979-10-17; source msha-controller-operator-history
- **controller_controls_operator:** Hurley Danny R & Sherman Blankenship → B & H Coal Company; 1979-04-16 to 1979-10-17; source msha-controller-operator-history
- **operator_operates_mine:** Express Coal Company Inc → No 1 Mine; 1979-10-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Miller Paul J → Express Coal Company Inc; 1979-10-18 to current/open; source msha-controller-operator-history