# Relationship history for MSHA mine 4609183

Current hierarchy: **William F  Adams → WA Mining, Inc. → Mine No. 1**

- 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:** William F  Adams → Mine No. 1; 1996-03-18 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Warcreek, Inc. → Mine No. 1; 2006-09-11 to 2009-09-13; source msha-controller-operator-history
- **controller_controls_mine:** John B  Ward et al → Mine No. 1; 2006-09-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John B  Ward et al → Warcreek, Inc.; 2006-09-11 to 2009-09-13; source msha-controller-operator-history
- **controller_controls_operator:** William R  Ward et al → Warcreek, Inc.; 2006-09-11 to 2009-09-13; source msha-controller-operator-history
- **operator_operates_mine:** WA Mining, Inc. → Mine No. 1; 2009-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William F  Adams → WA Mining, Inc.; 2009-09-14 to current/open; source msha-controller-operator-history