# Relationship history for MSHA mine 4105466

Current hierarchy: **Jacob  Bishop; Paul  Bishop; Lawrence  Conn → Medina Valley Materials LLC → Medina Valley Materials**

- 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:** Medina Valley Materials LLC → Medina Valley Materials; 2019-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lawrence  Conn et al → Medina Valley Materials; 2019-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lawrence  Conn et al → Medina Valley Materials LLC; 2019-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Bishop et al → Medina Valley Materials LLC; 2019-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jacob  Bishop et al → Medina Valley Materials LLC; 2019-10-01 to current/open; source msha-controller-operator-history