# Relationship history for MSHA mine 1509980

Current hierarchy: **Elmore Jesse Jr & Freddie Brown → L & V Coal Company → No 3 Mine**

- 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:** Elmore Jesse Jr & Freddie Brown → No 3 Mine; 1976-08-18 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** L & V Coal Company → No 3 Mine; 1976-09-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elmore Jesse Jr & Freddie Brown → L & V Coal Company; 1976-09-26 to current/open; source msha-controller-operator-history