# Relationship history for MSHA mine 1002251

Current hierarchy: **Jonathon P McCreary → JMAC Resources Inc → Crusher/WP Portable-Post Falls Home Pit**

- 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

- **controller_controls_mine:** Jeffrey  Sherman et al → Crusher/WP Portable-Post Falls Home Pit; 1986-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Doreen  Hexom  et al → Crusher/WP Portable-Post Falls Home Pit; 2002-08-15 to 2008-02-29; source msha-controller-operator-history
- **controller_controls_mine:** Jonathon P McCreary → Crusher/WP Portable-Post Falls Home Pit; 2008-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** JL Sherman Excavation Company → Crusher/WP Portable-Post Falls Home Pit; 2014-08-12 to 2018-06-16; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey  Sherman et al → JL Sherman Excavation Company; 2014-08-12 to 2018-06-16; source msha-controller-operator-history
- **controller_controls_operator:** Pamela  Sherman et al → JL Sherman Excavation Company; 2014-08-12 to 2018-06-16; source msha-controller-operator-history
- **operator_operates_mine:** JMAC Resources Inc → Crusher/WP Portable-Post Falls Home Pit; 2018-06-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Doreen  Hexom  et al → JMAC Resources Inc; 2018-06-17 to 2008-02-29; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Hexom  et al → JMAC Resources Inc; 2018-06-17 to 2008-02-29; source msha-controller-operator-history
- **controller_controls_operator:** Jonathon P McCreary → JMAC Resources Inc; 2018-06-17 to current/open; source msha-controller-operator-history