# Relationship history for MSHA mine 1515766

Current hierarchy: **Eickenhorst Frank C → Miners Inc → Miners Inc #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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Roulett J B → Miners Inc #1; 1983-10-25 to 1987-11-24; source msha-controller-operator-history
- **operator_operates_mine:** Splashdam Mining Inc → Miners Inc #1; 1986-10-01 to 1987-11-24; source msha-controller-operator-history
- **controller_controls_operator:** Roulett J B → Splashdam Mining Inc; 1986-10-01 to 1987-11-24; source msha-controller-operator-history
- **operator_operates_mine:** Anchor Mining Inc → Miners Inc #1; 1987-11-25 to 1989-02-27; source msha-controller-operator-history
- **controller_controls_mine:** John P  Inman → Miners Inc #1; 1987-11-25 to 1989-02-27; source msha-controller-operator-history
- **controller_controls_operator:** John P  Inman → Anchor Mining Inc; 1987-11-25 to 1989-02-27; source msha-controller-operator-history
- **operator_operates_mine:** Virgie Coal Company Inc → Miners Inc #1; 1989-02-28 to 1989-06-01; source msha-controller-operator-history
- **controller_controls_mine:** Johnson Terry → Miners Inc #1; 1989-02-28 to 1989-06-01; source msha-controller-operator-history
- **controller_controls_operator:** Johnson Terry → Virgie Coal Company Inc; 1989-02-28 to 1989-06-01; source msha-controller-operator-history
- **operator_operates_mine:** Miners Inc → Miners Inc #1; 1989-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Eickenhorst Frank C → Miners Inc #1; 1989-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eickenhorst Frank C → Miners Inc; 1989-06-02 to current/open; source msha-controller-operator-history