# Relationship history for MSHA mine 4603454

Current hierarchy: **Conner Glen Jr → Berachah Mining Inc → No 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

- **operator_operates_mine:** Zapata Coal Corp → No 1; 1950-01-01 to 1977-09-18; source msha-controller-operator-history
- **controller_controls_mine:** Zapata Corp → No 1; 1950-01-01 to 1978-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Zapata Corp → Zapata Coal Corp; 1950-01-01 to 1977-09-18; source msha-controller-operator-history
- **operator_operates_mine:** Donna Coal Corp → No 1; 1977-09-19 to 1980-10-19; source msha-controller-operator-history
- **controller_controls_mine:** Donna Coal Corp → No 1; 1977-09-19 to 1984-05-03; source msha-controller-operator-history
- **controller_controls_operator:** Donna Coal Corp → Donna Coal Corp; 1977-09-19 to 1980-10-19; source msha-controller-operator-history
- **operator_operates_mine:** Uniajax Mining Inc → No 1; 1980-10-20 to 1981-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Morris James S → No 1; 1980-10-20 to 1981-07-22; source msha-controller-operator-history
- **controller_controls_operator:** Morris James S → Uniajax Mining Inc; 1980-10-20 to 1981-07-22; source msha-controller-operator-history
- **operator_operates_mine:** Donna Coal Corp → No 1; 1981-07-23 to 1984-05-03; source msha-controller-operator-history
- **controller_controls_operator:** Donna Coal Corp → Donna Coal Corp; 1981-07-23 to 1984-05-03; source msha-controller-operator-history
- **operator_operates_mine:** Berachah Mining Inc → No 1; 1984-05-04 to 1988-01-17; source msha-controller-operator-history
- **controller_controls_mine:** James B  Simpkins → No 1; 1984-05-04 to 1988-01-17; source msha-controller-operator-history
- **controller_controls_operator:** James B  Simpkins → Berachah Mining Inc; 1984-05-04 to 1988-01-17; source msha-controller-operator-history
- **operator_operates_mine:** Berachah Mining Inc → No 1; 1988-01-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Conner Glen Jr → No 1; 1988-01-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Conner Glen Jr → Berachah Mining Inc; 1988-01-18 to current/open; source msha-controller-operator-history