# Relationship history for MSHA mine 2902522

Current hierarchy: **William (Miles)  Shiver III; William (Miles)  Shiver IV → Duke City Redi-Mix → Orona**

- 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:** Duke City Redi-Mix → Orona; 2020-07-29 to 2023-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Don  Wallin et al → Orona; 2020-07-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Don  Wallin et al → Duke City Redi-Mix; 2020-07-29 to 2023-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Miles  Shiver et al → Duke City Redi-Mix; 2020-07-29 to 2023-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Duke City Redi-Mix → Orona; 2023-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** William (Miles)  Shiver IV et al → Orona; 2023-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William (Miles)  Shiver IV et al → Duke City Redi-Mix; 2023-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William (Miles)  Shiver III et al → Duke City Redi-Mix; 2023-03-01 to current/open; source msha-controller-operator-history