# Relationship history for MSHA mine 4103051

Current hierarchy: **Mike  Moreno; James  Bagsby → North Texas Aggregates Inc → Quarry #2**

- 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:** Triple M Crushed Stone → Quarry #2; 1981-01-01 to 1984-03-26; source msha-controller-operator-history
- **controller_controls_mine:** Mc Daniel Tommy Jack → Quarry #2; 1981-01-01 to 1984-03-26; source msha-controller-operator-history
- **controller_controls_operator:** Mc Daniel Tommy Jack → Triple M Crushed Stone; 1981-01-01 to 1984-03-26; source msha-controller-operator-history
- **controller_controls_mine:** Mike  Moreno et al → Quarry #2; 1984-01-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** North Texas Aggregates Inc → Quarry #2; 1984-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mike  Moreno et al → North Texas Aggregates Inc; 1984-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Bagsby et al → North Texas Aggregates Inc; 1984-03-27 to current/open; source msha-controller-operator-history