# Relationship history for MSHA mine 3607136

Current hierarchy: **Marlene  Reilly; David A.  Bevan → Reilly Contracting Company → Wiconisco Silt Bank**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Reilly Contracting Company → Wiconisco Silt Bank; 1981-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David A.  Bevan et al → Wiconisco Silt Bank; 1981-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David A.  Bevan et al → Reilly Contracting Company; 1981-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Marlene  Reilly et al → Reilly Contracting Company; 1981-05-01 to current/open; source msha-controller-operator-history