# Relationship history for MSHA mine 1513770

Current hierarchy: **Mize Lora → D & L Coal Company → Mine #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:** Saylor Lonnie → Mine #1; 1978-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** G & T Coal Company → Mine #1; 1982-10-01 to 1984-09-23; source msha-controller-operator-history
- **controller_controls_operator:** Saylor Lonnie → G & T Coal Company; 1982-10-01 to 1984-09-23; source msha-controller-operator-history
- **controller_controls_mine:** Smith Joey → Mine #1; 1983-11-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cribb Coal Company → Mine #1; 1984-09-24 to 1990-01-01; source msha-controller-operator-history
- **controller_controls_operator:** Smith Joey → Cribb Coal Company; 1984-09-24 to 1990-01-01; source msha-controller-operator-history
- **controller_controls_mine:** Hoskins Numan → Mine #1; 1988-10-03 to 1990-04-22; source msha-controller-operator-history
- **operator_operates_mine:** Dns Coal Company Inc → Mine #1; 1990-01-02 to 1990-04-22; source msha-controller-operator-history
- **controller_controls_operator:** Hoskins Numan → Dns Coal Company Inc; 1990-01-02 to 1990-04-22; source msha-controller-operator-history
- **operator_operates_mine:** Cribb Coal Company → Mine #1; 1990-04-23 to 1994-07-04; source msha-controller-operator-history
- **controller_controls_operator:** Smith Joey → Cribb Coal Company; 1990-04-23 to 1994-07-04; source msha-controller-operator-history
- **operator_operates_mine:** Gwen Coal Company → Mine #1; 1994-07-05 to 1994-12-22; source msha-controller-operator-history
- **controller_controls_mine:** Sanders Donald → Mine #1; 1994-07-05 to 1994-12-22; source msha-controller-operator-history
- **controller_controls_operator:** Sanders Donald → Gwen Coal Company; 1994-07-05 to 1994-12-22; source msha-controller-operator-history
- **operator_operates_mine:** Brandy Coal Company Inc → Mine #1; 1994-12-23 to 1995-10-30; source msha-controller-operator-history
- **controller_controls_mine:** Sanders Bruce → Mine #1; 1994-12-23 to 1995-10-30; source msha-controller-operator-history
- **controller_controls_operator:** Sanders Bruce → Brandy Coal Company Inc; 1994-12-23 to 1995-10-30; source msha-controller-operator-history
- **operator_operates_mine:** D & L Coal Company Inc → Mine #1; 1995-10-31 to 1996-05-08; source msha-controller-operator-history
- **controller_controls_mine:** Mize David Et Al → Mine #1; 1995-10-31 to 1996-05-08; source msha-controller-operator-history
- **controller_controls_operator:** Mize David Et Al → D & L Coal Company Inc; 1995-10-31 to 1996-05-08; source msha-controller-operator-history
- **operator_operates_mine:** D & L Coal Company → Mine #1; 1996-05-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mize Lora → Mine #1; 1996-05-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mize Lora → D & L Coal Company; 1996-05-09 to current/open; source msha-controller-operator-history