# Relationship history for MSHA mine 1401349

Current hierarchy: **Gary L  Wacker; Robert L  Wacker → Afs Construction Inc → Afs Construction Incorporated**

- 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:** Afs Construction Inc → Afs Construction Incorporated; 1980-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gary L  Wacker et al → Afs Construction Incorporated; 1980-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary L  Wacker et al → Afs Construction Inc; 1980-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert L  Wacker et al → Afs Construction Inc; 1980-03-01 to current/open; source msha-controller-operator-history