# Relationship history for MSHA mine 4700219

Current hierarchy: **Dawson Trust dated June 20 2009 → Lannon Stone Products, Inc. → Sussex Quarry**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Vulcan Construction Materials, L.P. → Sussex Quarry; 1950-01-01 to 2013-06-20; source msha-controller-operator-history
- **controller_controls_mine:** Legacy Vulcan Corp (Form:Vulcan Materials Co) → Sussex Quarry; 1950-01-01 to 2007-11-15; source msha-controller-operator-history
- **controller_controls_operator:** Legacy Vulcan Corp (Form:Vulcan Materials Co) → Vulcan Construction Materials, L.P.; 1950-01-01 to 2007-11-15; source msha-controller-operator-history
- **controller_controls_mine:** James D  Dawson → Sussex Quarry; 1950-01-01 to 2022-01-20; source msha-controller-operator-history
- **controller_controls_mine:** Vulcan Materials Company → Sussex Quarry; 2007-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vulcan Materials Company → Vulcan Construction Materials, L.P.; 2007-11-16 to 2013-06-20; source msha-controller-operator-history
- **operator_operates_mine:** Lannon Stone Products, Inc. → Sussex Quarry; 2013-06-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James D  Dawson → Lannon Stone Products, Inc.; 2013-06-21 to 2022-01-20; source msha-controller-operator-history
- **controller_controls_mine:** Dawson Trust dated June 20 2009 → Sussex Quarry; 2022-01-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dawson Trust dated June 20 2009 → Lannon Stone Products, Inc.; 2022-01-21 to current/open; source msha-controller-operator-history