# Relationship history for MSHA mine 4605797

Current hierarchy: **Savage James P Iii → Christie Mining Company Inc → Mine 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:** Eastern Resources Inc → Mine No 1; 1978-06-01 to 1979-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Lebkuecher Ralph P → Mine No 1; 1978-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lebkuecher Ralph P → Eastern Resources Inc; 1978-06-01 to 1979-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Christie Mining Company Inc → Mine No 1; 1979-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Savage James P Iii → Mine No 1; 1979-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Savage James P Iii → Christie Mining Company Inc; 1979-11-01 to current/open; source msha-controller-operator-history