# Relationship history for MSHA mine 1518559

Current hierarchy: **Michael J  Childers → Interstate Recovery, Inc. → 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:** Trexes Enterprises, Inc. → No. 1; 2002-08-06 to 2003-05-07; source msha-controller-operator-history
- **controller_controls_mine:** Edna  Vester et al → No. 1; 2002-08-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edna  Vester et al → Trexes Enterprises, Inc.; 2002-08-06 to 2003-05-07; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Meade et al → Trexes Enterprises, Inc.; 2002-08-06 to 2003-05-07; source msha-controller-operator-history
- **operator_operates_mine:** Interstate Recovery, Inc. → No. 1; 2003-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael J  Childers → No. 1; 2003-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael J  Childers → Interstate Recovery, Inc.; 2003-05-08 to current/open; source msha-controller-operator-history