# Relationship history for MSHA mine 0405225

Current hierarchy: **Ledbetter G Darrell - Carl Pullen → Ddmj Enterprises → Lower Emma 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:** Ddmj Enterprises → Lower Emma Mine; 1993-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ledbetter G Darrell - Carl Pullen Et Al → Lower Emma Mine; 1993-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ledbetter G Darrell - Carl Pullen Et Al → Ddmj Enterprises; 1993-07-01 to current/open; source msha-controller-operator-history