# Relationship history for MSHA mine 4405100

Current hierarchy: **Carl  Hamilton → Kimcar Coal Company Inc → Kimcar 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

- **operator_operates_mine:** Salyers Coal Company Inc → Kimcar No 1 Mine; 1978-09-01 to 1980-07-02; source msha-controller-operator-history
- **controller_controls_mine:** Salyers Willis L → Kimcar No 1 Mine; 1978-09-01 to 1980-07-02; source msha-controller-operator-history
- **controller_controls_operator:** Salyers Willis L → Salyers Coal Company Inc; 1978-09-01 to 1980-07-02; source msha-controller-operator-history
- **operator_operates_mine:** Black & White Mining Inc → Kimcar No 1 Mine; 1980-07-03 to 1981-10-11; source msha-controller-operator-history
- **controller_controls_mine:** Ball Clarence → Kimcar No 1 Mine; 1980-07-03 to 1981-10-11; source msha-controller-operator-history
- **controller_controls_operator:** Ball Clarence → Black & White Mining Inc; 1980-07-03 to 1981-10-11; source msha-controller-operator-history
- **operator_operates_mine:** Kimcar Coal Company Inc → Kimcar No 1 Mine; 1981-10-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Carl  Hamilton → Kimcar No 1 Mine; 1981-10-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Hamilton → Kimcar Coal Company Inc; 1981-10-12 to current/open; source msha-controller-operator-history