# Relationship history for MSHA mine 4608495

Current hierarchy: **Richard  Maynard → J & L Auger Inc → Auger #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:** Richard  Maynard → Auger #1; 1992-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J & L Auger Inc → Auger #1; 1995-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard  Maynard → J & L Auger Inc; 1995-05-01 to current/open; source msha-controller-operator-history