# Relationship history for MSHA mine 3102229

Current hierarchy: **Elijah T Morton → Morton Trucking, Inc. → Morton Mine**

- 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:** Morton Trucking, Inc. → Morton Mine; 2008-01-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Elijah T Morton → Morton Mine; 2008-01-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elijah T Morton → Morton Trucking, Inc.; 2008-01-22 to current/open; source msha-controller-operator-history