# Relationship history for MSHA mine 1506750

Current hierarchy: **Benjamin R.  Bennett → Manalapan Mining Company Inc → Mcclain Tipple**

- 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

- **operator_operates_mine:** Yocum Creek Coal Company → Mcclain Tipple; 1950-01-01 to 1992-02-17; source msha-controller-operator-history
- **controller_controls_mine:** Mc Lain Garfield → Mcclain Tipple; 1950-01-01 to 1992-02-17; source msha-controller-operator-history
- **controller_controls_operator:** Mc Lain Garfield → Yocum Creek Coal Company; 1950-01-01 to 1992-02-17; source msha-controller-operator-history
- **controller_controls_mine:** Benjamin R.  Bennett → Mcclain Tipple; 1981-11-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Manalapan Mining Company Inc → Mcclain Tipple; 1992-02-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Benjamin R.  Bennett → Manalapan Mining Company Inc; 1992-02-18 to current/open; source msha-controller-operator-history