# Relationship history for MSHA mine 3609415

Current hierarchy: **Gerald B  Gay → Meadow Run Builders Inc. → Smithfield Stone & Supply**

- 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:** Meadow Run Builders Inc. → Smithfield Stone & Supply; 2006-04-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gerald B  Gay → Smithfield Stone & Supply; 2006-04-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gerald B  Gay → Meadow Run Builders Inc.; 2006-04-25 to current/open; source msha-controller-operator-history