# Relationship history for MSHA mine 1201077

Current hierarchy: **Embry Jerry F → Fisher Holding Company Inc → Fisher Holding Co Inc Dock**

- 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:** Fisher Holding Company Inc → Fisher Holding Co Inc Dock; 1950-01-01 to 1978-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Braum Clyde Jr → Fisher Holding Co Inc Dock; 1950-01-01 to 1978-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Braum Clyde Jr → Fisher Holding Company Inc; 1950-01-01 to 1978-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Fisher Holding Company Inc → Fisher Holding Co Inc Dock; 1978-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Embry Jerry F → Fisher Holding Co Inc Dock; 1978-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Embry Jerry F → Fisher Holding Company Inc; 1978-04-01 to current/open; source msha-controller-operator-history