# Relationship history for MSHA mine 1503762

Current hierarchy: **Elmore Jesse Jr & Freddie Brown → L & V Coal Company → No 1 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

- **operator_operates_mine:** Jamie Coal Company → No 1 Mine; 1950-01-01 to 1976-03-11; source msha-controller-operator-history
- **controller_controls_mine:** Jamie Coal Co → No 1 Mine; 1950-01-01 to 1976-03-11; source msha-controller-operator-history
- **controller_controls_operator:** Jamie Coal Co → Jamie Coal Company; 1950-01-01 to 1976-03-11; source msha-controller-operator-history
- **operator_operates_mine:** L & V Coal Company → No 1 Mine; 1976-03-12 to 1976-08-17; source msha-controller-operator-history
- **controller_controls_mine:** Banks Raymond & Melvin → No 1 Mine; 1976-03-12 to 1976-08-17; source msha-controller-operator-history
- **controller_controls_operator:** Banks Raymond & Melvin → L & V Coal Company; 1976-03-12 to 1976-08-17; source msha-controller-operator-history
- **operator_operates_mine:** L & V Coal Company → No 1 Mine; 1976-08-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Elmore Jesse Jr & Freddie Brown → No 1 Mine; 1976-08-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elmore Jesse Jr & Freddie Brown → L & V Coal Company; 1976-08-18 to current/open; source msha-controller-operator-history