# Relationship history for MSHA mine 4404143

Current hierarchy: **Wolford Lonnie-Ulvert C & Patrick C--Ervin C Hurle → W & H Coal Co 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Lester Elsie Et Al → No 1 Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Four L Coal Company Inc → No 1 Mine; 1975-08-04 to 1976-03-03; source msha-controller-operator-history
- **controller_controls_operator:** Lester Elsie Et Al → Four L Coal Company Inc; 1975-08-04 to 1976-03-03; source msha-controller-operator-history
- **controller_controls_mine:** Justice Carmel → No 1 Mine; 1975-11-12 to 1978-10-24; source msha-controller-operator-history
- **operator_operates_mine:** Hi Jacker Coal Company Inc → No 1 Mine; 1976-03-04 to 1976-11-09; source msha-controller-operator-history
- **controller_controls_operator:** Justice Carmel → Hi Jacker Coal Company Inc; 1976-03-04 to 1976-11-09; source msha-controller-operator-history
- **operator_operates_mine:** W & H Coal Co Inc → No 1 Mine; 1976-11-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Wolford Lonnie-Ulvert C & Patrick C--Ervin C Hurle → No 1 Mine; 1976-11-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wolford Lonnie-Ulvert C & Patrick C--Ervin C Hurle → W & H Coal Co Inc; 1976-11-10 to current/open; source msha-controller-operator-history