# Relationship history for MSHA mine 4407398

Current hierarchy: **Jeffrey A Paxton → Paxton Contractors Corporation → Audubon Sand Pit**

- 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:** Jeffrey A Paxton → Audubon Sand Pit; 2015-02-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Paxton Contractors Corporation → Audubon Sand Pit; 2019-12-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey A Paxton → Paxton Contractors Corporation; 2019-12-16 to current/open; source msha-controller-operator-history