# Relationship history for MSHA mine 4103574

Current hierarchy: **Jones Jimmy C Sr → Texas Stone Industries Inc → Texas Stone #1 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

- **controller_controls_mine:** Jones Jimmy C Sr → Texas Stone #1 Pit; 1987-08-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Texas Stone Industries Inc → Texas Stone #1 Pit; 1989-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jones Jimmy C Sr → Texas Stone Industries Inc; 1989-08-01 to current/open; source msha-controller-operator-history