# Relationship history for MSHA mine 1511263

Current hierarchy: **Infinity Coal Corp → Hickory Hill Development Corp → Winifrede 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:** Coleman Clifford & Ermal B Et Al → Winifrede Mine; 1976-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** T & D Coal Company Inc → Winifrede Mine; 1978-04-01 to 1979-03-29; source msha-controller-operator-history
- **controller_controls_mine:** Adkins Teddy → Winifrede Mine; 1978-04-01 to 1979-03-29; source msha-controller-operator-history
- **controller_controls_operator:** Adkins Teddy → T & D Coal Company Inc; 1978-04-01 to 1979-03-29; source msha-controller-operator-history
- **operator_operates_mine:** D & S Mining Company → Winifrede Mine; 1979-03-30 to 1979-06-11; source msha-controller-operator-history
- **controller_controls_mine:** Sword John & Otis Davis → Winifrede Mine; 1979-03-30 to 1979-06-11; source msha-controller-operator-history
- **controller_controls_operator:** Sword John & Otis Davis → D & S Mining Company; 1979-03-30 to 1979-06-11; source msha-controller-operator-history
- **operator_operates_mine:** Wright Coal Company Inc → Winifrede Mine; 1979-06-12 to 1980-06-19; source msha-controller-operator-history
- **controller_controls_mine:** Troy  Wright → Winifrede Mine; 1979-06-12 to 1999-06-03; source msha-controller-operator-history
- **controller_controls_operator:** Troy  Wright → Wright Coal Company Inc; 1979-06-12 to 1980-06-19; source msha-controller-operator-history
- **operator_operates_mine:** Bent Mountain Coal Company Inc → Winifrede Mine; 1980-06-20 to 1981-09-13; source msha-controller-operator-history
- **controller_controls_mine:** Smallwood James A → Winifrede Mine; 1980-06-20 to 1984-08-23; source msha-controller-operator-history
- **controller_controls_operator:** Smallwood James A → Bent Mountain Coal Company Inc; 1980-06-20 to 1981-09-13; source msha-controller-operator-history
- **operator_operates_mine:** Oak Ridge Coal Company Inc → Winifrede Mine; 1981-09-14 to 1981-12-23; source msha-controller-operator-history
- **controller_controls_operator:** Coleman Clifford & Ermal B Et Al → Oak Ridge Coal Company Inc; 1981-09-14 to 1981-12-23; source msha-controller-operator-history
- **operator_operates_mine:** Iva/Marcia Mining Company Inc → Winifrede Mine; 1981-12-24 to 1983-08-28; source msha-controller-operator-history
- **controller_controls_mine:** Hatfield Chester → Winifrede Mine; 1981-12-24 to 1983-08-28; source msha-controller-operator-history
- **controller_controls_operator:** Hatfield Chester → Iva/Marcia Mining Company Inc; 1981-12-24 to 1983-08-28; source msha-controller-operator-history
- **operator_operates_mine:** Rosehill Mining Company Inc → Winifrede Mine; 1983-08-29 to 1983-12-11; source msha-controller-operator-history
- **controller_controls_mine:** May Malta → Winifrede Mine; 1983-08-29 to 1983-12-11; source msha-controller-operator-history
- **controller_controls_operator:** May Malta → Rosehill Mining Company Inc; 1983-08-29 to 1983-12-11; source msha-controller-operator-history
- **operator_operates_mine:** Rosehill Mining Company Inc → Winifrede Mine; 1983-12-12 to 1984-12-11; source msha-controller-operator-history
- **controller_controls_mine:** Sawyers Harold D → Winifrede Mine; 1983-12-12 to 1984-12-11; source msha-controller-operator-history
- **controller_controls_operator:** Sawyers Harold D → Rosehill Mining Company Inc; 1983-12-12 to 1984-12-11; source msha-controller-operator-history
- **operator_operates_mine:** Rosehill Mining Company Inc → Winifrede Mine; 1984-12-12 to 1985-09-29; source msha-controller-operator-history
- **controller_controls_mine:** Smith Sarah A → Winifrede Mine; 1984-12-12 to 1985-09-29; source msha-controller-operator-history
- **controller_controls_operator:** Smith Sarah A → Rosehill Mining Company Inc; 1984-12-12 to 1985-09-29; source msha-controller-operator-history
- **operator_operates_mine:** Gar Potter Mining Company Inc → Winifrede Mine; 1985-09-30 to 1986-04-07; source msha-controller-operator-history
- **controller_controls_mine:** Potter Gar → Winifrede Mine; 1985-09-30 to 1986-04-07; source msha-controller-operator-history
- **controller_controls_operator:** Potter Gar → Gar Potter Mining Company Inc; 1985-09-30 to 1986-04-07; source msha-controller-operator-history
- **operator_operates_mine:** C & Pr Enterprises Inc → Winifrede Mine; 1986-04-08 to 1987-02-05; source msha-controller-operator-history
- **controller_controls_mine:** Robinson Clyde → Winifrede Mine; 1986-04-08 to 1987-02-05; source msha-controller-operator-history
- **controller_controls_operator:** Robinson Clyde → C & Pr Enterprises Inc; 1986-04-08 to 1987-02-05; source msha-controller-operator-history
- **operator_operates_mine:** Mona Coal Corp → Winifrede Mine; 1987-02-06 to 1988-07-12; source msha-controller-operator-history
- **controller_controls_mine:** Hall Forest D Et Al → Winifrede Mine; 1987-02-06 to 1988-07-12; source msha-controller-operator-history
- **controller_controls_operator:** Hall Forest D Et Al → Mona Coal Corp; 1987-02-06 to 1988-07-12; source msha-controller-operator-history
- **controller_controls_mine:** Stanley W Osborne → Winifrede Mine; 1988-02-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Laurel Ridge Coal Company Inc → Winifrede Mine; 1988-07-13 to 1990-06-04; source msha-controller-operator-history
- **controller_controls_operator:** Stanley W Osborne → Laurel Ridge Coal Company Inc; 1988-07-13 to 1990-06-04; source msha-controller-operator-history
- **controller_controls_mine:** Infinity Coal Corp → Winifrede Mine; 1989-03-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hickory Hill Development Corp → Winifrede Mine; 1990-06-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Infinity Coal Corp → Hickory Hill Development Corp; 1990-06-05 to current/open; source msha-controller-operator-history