# Relationship history for MSHA mine 3102294

Current hierarchy: **John E Jenkins; Wes  Bumgardner → John E. Jenkins, Inc. → John E. Jenkins Quarry**

- 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:** John E. Jenkins, Inc. → John E. Jenkins Quarry; 2015-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John E Jenkins et al → John E. Jenkins Quarry; 2015-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John E Jenkins et al → John E. Jenkins, Inc.; 2015-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wes  Bumgardner et al → John E. Jenkins, Inc.; 2015-02-12 to current/open; source msha-controller-operator-history