# Relationship history for MSHA mine 3101984

Current hierarchy: **Bryan  Weatherington → Tranters Creek Mining Company Inc → Tranters Creek Mining Co., Inc.**

- 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:** Grace  Weatherington → Tranters Creek Mining Co., Inc.; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tranters Creek Mining Company → Tranters Creek Mining Co., Inc.; 1985-07-01 to 1989-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Grace  Weatherington → Tranters Creek Mining Company; 1985-07-01 to 1989-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Tranters Creek Mining Company Inc → Tranters Creek Mining Co., Inc.; 1989-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bryan  Weatherington → Tranters Creek Mining Co., Inc.; 1989-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bryan  Weatherington → Tranters Creek Mining Company Inc; 1989-06-01 to current/open; source msha-controller-operator-history