# Relationship history for MSHA mine 1512510

Current hierarchy: **James H  Booth → Thelma Coal Company Inc → No4**

- 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:** Mooney James S Sr Et Al → No4; 1973-08-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James H  Booth et al → No4; 1975-06-26 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** A & K Coal Company Inc → No4; 1980-08-01 to 1986-07-20; source msha-controller-operator-history
- **controller_controls_mine:** Dotson Thurlin → No4; 1980-08-01 to 1986-07-20; source msha-controller-operator-history
- **controller_controls_operator:** Dotson Thurlin → A & K Coal Company Inc; 1980-08-01 to 1986-07-20; source msha-controller-operator-history
- **operator_operates_mine:** Elm Coal Corp → No4; 1986-07-21 to 1987-03-08; source msha-controller-operator-history
- **controller_controls_operator:** Mooney James S Sr Et Al → Elm Coal Corp; 1986-07-21 to 1987-03-08; source msha-controller-operator-history
- **operator_operates_mine:** Thelma Coal Company Inc → No4; 1987-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James H  Booth et al → Thelma Coal Company Inc; 1987-03-09 to current/open; source msha-controller-operator-history