# Relationship history for MSHA mine 4001699

Current hierarchy: **Perry Beckham J → Pine Hill Coal Company Inc → No 1 Tipple**

- 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:** Long Wendell J-A B Long Jr Et Al → No 1 Tipple; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Longwa Inc → No 1 Tipple; 1974-12-03 to 1976-02-23; source msha-controller-operator-history
- **controller_controls_operator:** Long Wendell J-A B Long Jr Et Al → Longwa Inc; 1974-12-03 to 1976-02-23; source msha-controller-operator-history
- **operator_operates_mine:** Perry & Howard Enterprises → No 1 Tipple; 1976-02-24 to 1977-03-25; source msha-controller-operator-history
- **controller_controls_mine:** Perry Beckham J-Jack Howard Et Al → No 1 Tipple; 1976-02-24 to 1977-03-25; source msha-controller-operator-history
- **controller_controls_operator:** Perry Beckham J-Jack Howard Et Al → Perry & Howard Enterprises; 1976-02-24 to 1977-03-25; source msha-controller-operator-history
- **operator_operates_mine:** Katron Corp → No 1 Tipple; 1977-03-26 to 1978-11-06; source msha-controller-operator-history
- **controller_controls_mine:** Neal Lyle E → No 1 Tipple; 1977-03-26 to 1978-11-06; source msha-controller-operator-history
- **controller_controls_operator:** Neal Lyle E → Katron Corp; 1977-03-26 to 1978-11-06; source msha-controller-operator-history
- **operator_operates_mine:** Dusty Coal Company → No 1 Tipple; 1978-11-07 to 1979-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Perry Beckham J → No 1 Tipple; 1978-11-07 to 1979-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Perry Beckham J → Dusty Coal Company; 1978-11-07 to 1979-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Dusty Coal Company → No 1 Tipple; 1979-10-01 to 1980-05-28; source msha-controller-operator-history
- **controller_controls_mine:** Leader Michael → No 1 Tipple; 1979-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Leader Michael → Dusty Coal Company; 1979-10-01 to 1980-05-28; source msha-controller-operator-history
- **operator_operates_mine:** Pine Hill Coal Company Inc → No 1 Tipple; 1980-05-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Perry Beckham J → No 1 Tipple; 1980-05-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Perry Beckham J → Pine Hill Coal Company Inc; 1980-05-29 to current/open; source msha-controller-operator-history