# Relationship history for MSHA mine 4604550

Current hierarchy: **Monk Arlie H (Rusty) Ii → Triple H Coal Company Inc → #19 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:** National Bulk Carriers → #19 Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** United Pocahontas Coal Company → #19 Mine; 1975-03-31 to 1983-02-23; source msha-controller-operator-history
- **controller_controls_operator:** National Bulk Carriers → United Pocahontas Coal Company; 1975-03-31 to 1983-02-23; source msha-controller-operator-history
- **operator_operates_mine:** Lazy C Coal Corp → #19 Mine; 1983-02-24 to 1988-08-23; source msha-controller-operator-history
- **controller_controls_mine:** Cole James W Jr Et Al → #19 Mine; 1983-02-24 to 1988-08-23; source msha-controller-operator-history
- **controller_controls_operator:** Cole James W Jr Et Al → Lazy C Coal Corp; 1983-02-24 to 1988-08-23; source msha-controller-operator-history
- **operator_operates_mine:** Sol Coal Inc → #19 Mine; 1988-08-24 to 1989-04-05; source msha-controller-operator-history
- **controller_controls_mine:** Bradsis Ronald D → #19 Mine; 1988-08-24 to 1989-04-05; source msha-controller-operator-history
- **controller_controls_operator:** Bradsis Ronald D → Sol Coal Inc; 1988-08-24 to 1989-04-05; source msha-controller-operator-history
- **operator_operates_mine:** Mountaineer Coal Enterprises Inc → #19 Mine; 1989-04-06 to 1991-09-10; source msha-controller-operator-history
- **controller_controls_mine:** Harman Kendris (Ken) → #19 Mine; 1989-04-06 to 1991-09-10; source msha-controller-operator-history
- **controller_controls_operator:** Harman Kendris (Ken) → Mountaineer Coal Enterprises Inc; 1989-04-06 to 1991-09-10; source msha-controller-operator-history
- **operator_operates_mine:** Triple H Coal Company Inc → #19 Mine; 1991-09-11 to 1992-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Hagerman Willie → #19 Mine; 1991-09-11 to 1992-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Hagerman Willie → Triple H Coal Company Inc; 1991-09-11 to 1992-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Triple H Coal Company Inc → #19 Mine; 1992-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Monk Arlie H (Rusty) Ii → #19 Mine; 1992-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Monk Arlie H (Rusty) Ii → Triple H Coal Company Inc; 1992-07-01 to current/open; source msha-controller-operator-history