# Relationship history for MSHA mine 3503813

Current hierarchy: **Richard Eugene  Dodge; Janie P Dodge → Dodge Logging Inc. → Portable 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Dodge Logging Inc. → Portable 1; 2014-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Janie P Dodge et al → Portable 1; 2014-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Janie P Dodge et al → Dodge Logging Inc.; 2014-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard Eugene  Dodge et al → Dodge Logging Inc.; 2014-04-14 to current/open; source msha-controller-operator-history