# Relationship history for MSHA mine 5001697

Current hierarchy: **James P  McGlinchy → M & M Constructors LLC → Crusher Unit # 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:** M & M Constructors → Crusher Unit # 1; 2001-05-01 to 2019-04-30; source msha-controller-operator-history
- **controller_controls_mine:** James P  McGlinchy → Crusher Unit # 1; 2001-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James P  McGlinchy → M & M Constructors; 2001-05-01 to 2019-04-30; source msha-controller-operator-history
- **operator_operates_mine:** M & M Constructors LLC → Crusher Unit # 1; 2019-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James P  McGlinchy → Crusher Unit # 1; 2019-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James P  McGlinchy → M & M Constructors LLC; 2019-05-01 to current/open; source msha-controller-operator-history