# Relationship history for MSHA mine 1516601

Current hierarchy: **Roger D  Barnette → Last Gasp Coal Corp → Mine No 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Hattie F  Johnson → Mine No 1; 1987-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Puncheon Branch Coal Company Inc → Mine No 1; 1989-04-01 to 1991-04-24; source msha-controller-operator-history
- **controller_controls_operator:** Hattie F  Johnson → Puncheon Branch Coal Company Inc; 1989-04-01 to 1991-04-24; source msha-controller-operator-history
- **operator_operates_mine:** Some Day Mining Corp → Mine No 1; 1991-04-25 to 1993-02-18; source msha-controller-operator-history
- **controller_controls_mine:** Roger D  Barnette → Mine No 1; 1991-04-25 to 1993-02-18; source msha-controller-operator-history
- **controller_controls_operator:** Roger D  Barnette → Some Day Mining Corp; 1991-04-25 to 1993-02-18; source msha-controller-operator-history
- **operator_operates_mine:** B & D Coal Company Inc → Mine No 1; 1993-02-19 to 1994-04-05; source msha-controller-operator-history
- **controller_controls_mine:** Goble R Don → Mine No 1; 1993-02-19 to 1994-04-05; source msha-controller-operator-history
- **controller_controls_operator:** Goble R Don → B & D Coal Company Inc; 1993-02-19 to 1994-04-05; source msha-controller-operator-history
- **operator_operates_mine:** Last Gasp Coal Corp → Mine No 1; 1994-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Roger D  Barnette → Mine No 1; 1994-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roger D  Barnette → Last Gasp Coal Corp; 1994-04-06 to current/open; source msha-controller-operator-history