# Relationship history for MSHA mine 1513389

Current hierarchy: **Michael  Puskarich → Cravat Coal Coal Company Inc → St Clair Hanover #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

- **controller_controls_mine:** Michael  Puskarich  et al → St Clair Hanover #1; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Currans Wayne → St Clair Hanover #1; 1978-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Curway Corp → St Clair Hanover #1; 1982-03-01 to 1984-03-13; source msha-controller-operator-history
- **controller_controls_operator:** Currans Wayne → Curway Corp; 1982-03-01 to 1984-03-13; source msha-controller-operator-history
- **operator_operates_mine:** Excel Inc → St Clair Hanover #1; 1984-03-14 to 1984-07-01; source msha-controller-operator-history
- **controller_controls_mine:** Schmid Fred → St Clair Hanover #1; 1984-03-14 to 1984-07-01; source msha-controller-operator-history
- **controller_controls_operator:** Schmid Fred → Excel Inc; 1984-03-14 to 1984-07-01; source msha-controller-operator-history
- **operator_operates_mine:** Cravat Coal Company Inc → St Clair Hanover #1; 1984-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Puskarich  et al → Cravat Coal Company Inc; 1984-07-02 to current/open; source msha-controller-operator-history