# Relationship history for MSHA mine 4609056

Current hierarchy: **William F  Adams → Caretta Mining, Inc. → No. 1 Refuse**

- 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:** Ward Frankie T → No. 1 Refuse; 1994-04-01 to 2004-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Caretta Mining, Inc. → No. 1 Refuse; 2004-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ward Frankie T → Caretta Mining, Inc.; 2004-07-26 to 2004-07-25; source msha-controller-operator-history
- **controller_controls_mine:** William F  Adams → No. 1 Refuse; 2004-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William F  Adams → Caretta Mining, Inc.; 2004-07-26 to current/open; source msha-controller-operator-history