# Relationship history for MSHA mine 1510390

Current hierarchy: **Shepherd Bill → S & S Trucking Inc → S&S Trucking**

- 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

- **operator_operates_mine:** Pigmy Coal Company → S&S Trucking; 1977-05-01 to 1981-11-12; source msha-controller-operator-history
- **controller_controls_mine:** Cornett James M → S&S Trucking; 1977-05-01 to 1981-11-12; source msha-controller-operator-history
- **controller_controls_operator:** Cornett James M → Pigmy Coal Company; 1977-05-01 to 1981-11-12; source msha-controller-operator-history
- **controller_controls_mine:** Collinsworth Stephen → S&S Trucking; 1981-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** P M Coal Company → S&S Trucking; 1981-11-13 to 1983-12-27; source msha-controller-operator-history
- **controller_controls_mine:** Maxwell Roger & Pete → S&S Trucking; 1981-11-13 to 1983-12-27; source msha-controller-operator-history
- **controller_controls_operator:** Maxwell Roger & Pete → P M Coal Company; 1981-11-13 to 1983-12-27; source msha-controller-operator-history
- **controller_controls_mine:** Caudill Reldon Et Al → S&S Trucking; 1983-05-01 to 1986-04-27; source msha-controller-operator-history
- **operator_operates_mine:** R T C Coal Company → S&S Trucking; 1983-12-28 to 1986-04-27; source msha-controller-operator-history
- **controller_controls_operator:** Caudill Reldon Et Al → R T C Coal Company; 1983-12-28 to 1986-04-27; source msha-controller-operator-history
- **controller_controls_mine:** Lyon Southwell → S&S Trucking; 1985-10-15 to 1988-11-27; source msha-controller-operator-history
- **operator_operates_mine:** Lynca Coal Corp → S&S Trucking; 1986-04-28 to 1986-11-23; source msha-controller-operator-history
- **controller_controls_operator:** Lyon Southwell → Lynca Coal Corp; 1986-04-28 to 1986-11-23; source msha-controller-operator-history
- **operator_operates_mine:** Blackhawk Mining Company → S&S Trucking; 1986-11-24 to 1987-01-27; source msha-controller-operator-history
- **controller_controls_mine:** Pinson Edward S Et Al → S&S Trucking; 1986-11-24 to 1987-01-27; source msha-controller-operator-history
- **controller_controls_operator:** Pinson Edward S Et Al → Blackhawk Mining Company; 1986-11-24 to 1987-01-27; source msha-controller-operator-history
- **operator_operates_mine:** Lynca Coal Corp → S&S Trucking; 1987-01-28 to 1988-11-27; source msha-controller-operator-history
- **controller_controls_operator:** Lyon Southwell → Lynca Coal Corp; 1987-01-28 to 1988-11-27; source msha-controller-operator-history
- **operator_operates_mine:** Red Oak Mining Company → S&S Trucking; 1988-11-28 to 1990-04-16; source msha-controller-operator-history
- **controller_controls_mine:** Breeding Bennett → S&S Trucking; 1988-11-28 to 1990-04-16; source msha-controller-operator-history
- **controller_controls_operator:** Breeding Bennett → Red Oak Mining Company; 1988-11-28 to 1990-04-16; source msha-controller-operator-history
- **operator_operates_mine:** Maverick Mining Inc → S&S Trucking; 1990-04-17 to 1990-10-20; source msha-controller-operator-history
- **controller_controls_operator:** Collinsworth Stephen → Maverick Mining Inc; 1990-04-17 to 1990-10-20; source msha-controller-operator-history
- **operator_operates_mine:** S & S Trucking Inc → S&S Trucking; 1990-10-21 to 1992-03-08; source msha-controller-operator-history
- **controller_controls_mine:** Shepherd Bill → S&S Trucking; 1990-10-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shepherd Bill → S & S Trucking Inc; 1990-10-21 to 1992-03-08; source msha-controller-operator-history
- **controller_controls_mine:** Gentry Christine → S&S Trucking; 1991-08-12 to 1995-04-02; source msha-controller-operator-history
- **operator_operates_mine:** Silver Nugget Inc → S&S Trucking; 1992-03-09 to 1993-03-28; source msha-controller-operator-history
- **controller_controls_operator:** Gentry Christine → Silver Nugget Inc; 1992-03-09 to 1993-03-28; source msha-controller-operator-history
- **operator_operates_mine:** S & S Trucking Inc → S&S Trucking; 1993-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shepherd Bill → S & S Trucking Inc; 1993-03-29 to current/open; source msha-controller-operator-history