# Relationship history for MSHA mine 3603325

Current hierarchy: **James J  Curran Jr → Lehigh Coal & Navigation Company → #12 Fine Coal Plant**

- 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

- **operator_operates_mine:** Greenwood Mining Company → #12 Fine Coal Plant; 1950-01-01 to 1974-12-18; source msha-controller-operator-history
- **controller_controls_mine:** James  Fauzio  et al → #12 Fine Coal Plant; 1950-01-01 to 1974-12-18; source msha-controller-operator-history
- **controller_controls_operator:** James  Fauzio  et al → Greenwood Mining Company; 1950-01-01 to 1974-12-18; source msha-controller-operator-history
- **controller_controls_mine:** Bethlehem Steel Corp → #12 Fine Coal Plant; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bethlehem Mines Corp → #12 Fine Coal Plant; 1974-12-19 to 1989-02-26; source msha-controller-operator-history
- **controller_controls_operator:** Bethlehem Steel Corp → Bethlehem Mines Corp; 1974-12-19 to 1989-02-26; source msha-controller-operator-history
- **operator_operates_mine:** Lehigh Coal & Navigation Company → #12 Fine Coal Plant; 1989-02-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James J  Curran Jr → #12 Fine Coal Plant; 1989-02-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James J  Curran Jr → Lehigh Coal & Navigation Company; 1989-02-27 to current/open; source msha-controller-operator-history