# Relationship history for MSHA mine 2000784

Current hierarchy: **Chris  Peyerk; James A Jacob → Mid Michigan Materials → Wilson 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Mid Michigan Materials, Inc. → Wilson Pit; 1950-01-01 to 2016-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Jeffrey W  Wilson → Wilson Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey W  Wilson → Mid Michigan Materials, Inc.; 1950-01-01 to 2016-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Mid Michigan Materials → Wilson Pit; 2016-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James A Jacob et al → Wilson Pit; 2016-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James A Jacob et al → Mid Michigan Materials; 2016-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chris  Peyerk et al → Mid Michigan Materials; 2016-12-01 to current/open; source msha-controller-operator-history