# Relationship history for MSHA mine 3901540

Current hierarchy: **Jason  Bowes → BOWES CONSTRUCTION, INC → PORTABLE PLANT - DREDGE OPERATION**

- 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:** Lyle  Bowes → PORTABLE PLANT - DREDGE OPERATION; 1950-01-01 to 2016-04-13; source msha-controller-operator-history
- **operator_operates_mine:** BOWES CONSTRUCTION, INC → PORTABLE PLANT - DREDGE OPERATION; 2009-05-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lyle  Bowes → BOWES CONSTRUCTION, INC; 2009-05-14 to 2016-04-13; source msha-controller-operator-history
- **controller_controls_mine:** Jason  Bowes et al → PORTABLE PLANT - DREDGE OPERATION; 2016-04-14 to 2023-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Jason  Bowes et al → BOWES CONSTRUCTION, INC; 2016-04-14 to 2023-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Miranda C  Bowes Peterson et al → BOWES CONSTRUCTION, INC; 2016-04-14 to 2023-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Jason  Bowes → PORTABLE PLANT - DREDGE OPERATION; 2023-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason  Bowes → BOWES CONSTRUCTION, INC; 2023-05-01 to current/open; source msha-controller-operator-history