# Relationship history for MSHA mine 5000494

Current hierarchy: **Bruce D Morley → Bruce D Morley-Contractor → Pete Ludwig Gravel Pit - Section 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Belardi & Schneider Inc → Pete Ludwig Gravel Pit - Section 1; 1950-01-01 to 1978-10-25; source msha-controller-operator-history
- **controller_controls_mine:** Schneider Charles J Et Al → Pete Ludwig Gravel Pit - Section 1; 1950-01-01 to 1978-10-25; source msha-controller-operator-history
- **controller_controls_operator:** Schneider Charles J Et Al → Belardi & Schneider Inc; 1950-01-01 to 1978-10-25; source msha-controller-operator-history
- **operator_operates_mine:** Bruce D Morley-Contractor → Pete Ludwig Gravel Pit - Section 1; 1978-10-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bruce D Morley → Pete Ludwig Gravel Pit - Section 1; 1978-10-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bruce D Morley → Bruce D Morley-Contractor; 1978-10-26 to current/open; source msha-controller-operator-history