# Relationship history for MSHA mine 1510751

Current hierarchy: **Mc Namee Gerald T → M & R Mining Company Inc → Mine No 32**

- 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:** Marsillett Paul T → Mine No 32; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ivyton Coal Company Inc → Mine No 32; 1977-09-01 to 1978-06-27; source msha-controller-operator-history
- **controller_controls_operator:** Marsillett Paul T → Ivyton Coal Company Inc; 1977-09-01 to 1978-06-27; source msha-controller-operator-history
- **operator_operates_mine:** Ivyton Coal Company Inc → Mine No 32; 1978-06-28 to 1979-07-15; source msha-controller-operator-history
- **controller_controls_mine:** Owens Hershel → Mine No 32; 1978-06-28 to 1979-07-15; source msha-controller-operator-history
- **controller_controls_operator:** Owens Hershel → Ivyton Coal Company Inc; 1978-06-28 to 1979-07-15; source msha-controller-operator-history
- **operator_operates_mine:** M & R Mining Company Inc → Mine No 32; 1979-07-16 to 1980-04-22; source msha-controller-operator-history
- **controller_controls_mine:** Continental Resources & Mineral Corp → Mine No 32; 1979-07-16 to 1980-04-22; source msha-controller-operator-history
- **controller_controls_operator:** Continental Resources & Mineral Corp → M & R Mining Company Inc; 1979-07-16 to 1980-04-22; source msha-controller-operator-history
- **operator_operates_mine:** M & R Mining Company Inc → Mine No 32; 1980-04-23 to 1980-09-29; source msha-controller-operator-history
- **controller_controls_mine:** Short Hershell & Buford Ramey → Mine No 32; 1980-04-23 to 1980-09-29; source msha-controller-operator-history
- **controller_controls_operator:** Short Hershell & Buford Ramey → M & R Mining Company Inc; 1980-04-23 to 1980-09-29; source msha-controller-operator-history
- **operator_operates_mine:** M & R Mining Company Inc → Mine No 32; 1980-09-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mc Namee Gerald T → Mine No 32; 1980-09-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Namee Gerald T → M & R Mining Company Inc; 1980-09-30 to current/open; source msha-controller-operator-history