# Relationship history for MSHA mine 1516547

Current hierarchy: **Davis Jerry M → Tiger Development Inc → Mine #1**

- 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:** Sanders Kedrick → Mine #1; 1984-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lawson Truman Dale → Mine #1; 1987-10-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Wild Turkey Enterprises Inc → Mine #1; 1989-01-01 to 1990-03-25; source msha-controller-operator-history
- **controller_controls_operator:** Sanders Kedrick → Wild Turkey Enterprises Inc; 1989-01-01 to 1990-03-25; source msha-controller-operator-history
- **operator_operates_mine:** Tdl Coal Company Inc → Mine #1; 1990-03-26 to 1991-10-28; source msha-controller-operator-history
- **controller_controls_operator:** Lawson Truman Dale → Tdl Coal Company Inc; 1990-03-26 to 1991-10-28; source msha-controller-operator-history
- **controller_controls_mine:** Davis Jerry M Et Al → Mine #1; 1991-10-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tiger Development Inc → Mine #1; 1991-10-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Davis Jerry M Et Al → Tiger Development Inc; 1991-10-29 to current/open; source msha-controller-operator-history