# Relationship history for MSHA mine 3609895

Current hierarchy: **Daniel R  Hawbaker → Glenn O. Hawbaker, Inc. → Minnier Quarry #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:** Daniel R  Hawbaker  et al → Minnier Quarry #1; 1983-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** E & J Construction LLC → Minnier Quarry #1; 2013-08-22 to 2014-10-20; source msha-controller-operator-history
- **controller_controls_mine:** Julie M  Minnier et al → Minnier Quarry #1; 2013-08-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Julie M  Minnier et al → E & J Construction LLC; 2013-08-22 to 2014-10-20; source msha-controller-operator-history
- **controller_controls_operator:** Edward V  Minnier et al → E & J Construction LLC; 2013-08-22 to 2014-10-20; source msha-controller-operator-history
- **operator_operates_mine:** Glenn O. Hawbaker, Inc. → Minnier Quarry #1; 2014-10-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel R  Hawbaker  et al → Glenn O. Hawbaker, Inc.; 2014-10-21 to current/open; source msha-controller-operator-history