# Relationship history for MSHA mine 1202403

Current hierarchy: **John M  Hanley → Dennis Trucking Co Inc → Boral Bricks Terre Haute In**

- 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:** Boral Limited → Boral Bricks Terre Haute In; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John M  Hanley → Boral Bricks Terre Haute In; 1993-07-26 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Boral Bricks Inc → Boral Bricks Terre Haute In; 2007-10-26 to 2008-06-08; source msha-controller-operator-history
- **controller_controls_operator:** Boral Limited → Boral Bricks Inc; 2007-10-26 to 2008-06-08; source msha-controller-operator-history
- **operator_operates_mine:** Dennis Trucking Co Inc → Boral Bricks Terre Haute In; 2008-06-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John M  Hanley → Dennis Trucking Co Inc; 2008-06-09 to current/open; source msha-controller-operator-history