# Relationship history for MSHA mine 4404070

Current hierarchy: **White Ulys P & Edward V Cole → Amonate Coal Company Inc → 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:** Amonate Coal Company → No 1 Mine; 1975-03-27 to 1975-12-29; source msha-controller-operator-history
- **controller_controls_mine:** Riley Basil--Russell L & Samuel J Crockett → No 1 Mine; 1975-03-27 to 1975-12-29; source msha-controller-operator-history
- **controller_controls_operator:** Riley Basil--Russell L & Samuel J Crockett → Amonate Coal Company; 1975-03-27 to 1975-12-29; source msha-controller-operator-history
- **operator_operates_mine:** Amonate Coal Company Inc → No 1 Mine; 1975-12-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** White Ulys P & Edward V Cole → No 1 Mine; 1975-12-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** White Ulys P & Edward V Cole → Amonate Coal Company Inc; 1975-12-30 to current/open; source msha-controller-operator-history