# Relationship history for MSHA mine 1510421

Current hierarchy: **Kilgore Danny → Daisy Mining Company → #1 Surface**

- 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:** Baker Glenn → #1 Surface; 1976-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Makilba Mining Company Inc → #1 Surface; 1977-05-01 to 1978-11-05; source msha-controller-operator-history
- **controller_controls_operator:** Baker Glenn → Makilba Mining Company Inc; 1977-05-01 to 1978-11-05; source msha-controller-operator-history
- **controller_controls_mine:** Kilgore Danny → #1 Surface; 1977-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Daisy Mining Company → #1 Surface; 1978-11-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kilgore Danny → Daisy Mining Company; 1978-11-06 to current/open; source msha-controller-operator-history