# Relationship history for MSHA mine 1000782

Current hierarchy: **Elbert Lynn  Dahle → Dahle'S Red-E-Mix → Havenman Pit**

- 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:** Dahle'S Red-E-Mix → Havenman Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Elbert Lynn  Dahle et al → Havenman Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elbert Lynn  Dahle et al → Dahle'S Red-E-Mix; 1950-01-01 to current/open; source msha-controller-operator-history