# Relationship history for MSHA mine 2102983

Current hierarchy: **Stephen G  St Claire; Scott T  St Claire → Miller Excavating Inc → M6 Pit**

- 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

- **controller_controls_mine:** Peter J  Miller → M6 Pit; 1950-01-01 to 2017-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Hammes Sand & Gravel → M6 Pit; 1988-09-01 to 2020-08-09; source msha-controller-operator-history
- **controller_controls_mine:** William E  Hammes → M6 Pit; 1988-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William E  Hammes → Hammes Sand & Gravel; 1988-09-01 to 2020-08-09; source msha-controller-operator-history
- **controller_controls_mine:** Scott T  St Claire et al → M6 Pit; 2018-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Miller Excavating Inc → M6 Pit; 2020-08-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott T  St Claire et al → Miller Excavating Inc; 2020-08-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stephen G  St Claire et al → Miller Excavating Inc; 2020-08-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peter J  Miller → Miller Excavating Inc; 2020-08-10 to 2017-12-31; source msha-controller-operator-history