# Relationship history for MSHA mine 3003616

Current hierarchy: **Joseph  Bauer → Bauer Concrete & Masonry Inc → Bauer Limestone 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** David D  Staie et al → Bauer Limestone Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rural Hill Limestone Corp. → Bauer Limestone Quarry; 2007-11-06 to 2026-03-23; source msha-controller-operator-history
- **controller_controls_operator:** David D  Staie et al → Rural Hill Limestone Corp.; 2007-11-06 to 2026-03-23; source msha-controller-operator-history
- **operator_operates_mine:** Bauer Concrete & Masonry Inc → Bauer Limestone Quarry; 2026-03-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joseph  Bauer → Bauer Limestone Quarry; 2026-03-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Bauer → Bauer Concrete & Masonry Inc; 2026-03-24 to current/open; source msha-controller-operator-history