# Relationship history for MSHA mine 4607411

Current hierarchy: **Ball Kendall & Bernie Curry → Solomon'S Mines Inc → No 1 Mine**

- 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:** Motto John → No 1 Mine; 1987-09-21 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Solomon'S Mine Inc → No 1 Mine; 1987-12-01 to 1990-12-17; source msha-controller-operator-history
- **controller_controls_operator:** Motto John → Solomon'S Mine Inc; 1987-12-01 to 1990-12-17; source msha-controller-operator-history
- **operator_operates_mine:** Solomon'S Mines Inc → No 1 Mine; 1990-12-18 to 1992-07-15; source msha-controller-operator-history
- **controller_controls_mine:** Kessler Tony → No 1 Mine; 1990-12-18 to 1992-07-15; source msha-controller-operator-history
- **controller_controls_operator:** Kessler Tony → Solomon'S Mines Inc; 1990-12-18 to 1992-07-15; source msha-controller-operator-history
- **operator_operates_mine:** Solomon'S Mines Inc → No 1 Mine; 1992-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ball Kendall & Bernie Curry → No 1 Mine; 1992-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ball Kendall & Bernie Curry → Solomon'S Mines Inc; 1992-07-16 to current/open; source msha-controller-operator-history