# Relationship history for MSHA mine 1516405

Current hierarchy: **Davidson Larry-Earl Jackson → Jeremy Coal Company → No 2**

- 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:** Wesco → No 2; 1988-06-01 to 1990-10-01; source msha-controller-operator-history
- **controller_controls_mine:** Sharp Wesley - Bruce Hubbs Et Al → No 2; 1988-06-01 to 1990-10-01; source msha-controller-operator-history
- **controller_controls_operator:** Sharp Wesley - Bruce Hubbs Et Al → Wesco; 1988-06-01 to 1990-10-01; source msha-controller-operator-history
- **operator_operates_mine:** Dale Coal Company → No 2; 1990-10-02 to 1991-01-13; source msha-controller-operator-history
- **controller_controls_mine:** Golden Dale → No 2; 1990-10-02 to 1991-01-13; source msha-controller-operator-history
- **controller_controls_operator:** Golden Dale → Dale Coal Company; 1990-10-02 to 1991-01-13; source msha-controller-operator-history
- **controller_controls_mine:** Davidson Larry-Earl Jackson Et Al → No 2; 1990-11-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jeremy Coal Company → No 2; 1991-01-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Davidson Larry-Earl Jackson Et Al → Jeremy Coal Company; 1991-01-14 to current/open; source msha-controller-operator-history