# Relationship history for MSHA mine 4300800

Current hierarchy: **James P  Mars Sr → JAMES P MARS SR BUILDER INC → PARKERS 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

- **operator_operates_mine:** James P Mars Sr Builder Inc → PARKERS PIT; 2019-09-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James P  Mars Sr → PARKERS PIT; 2019-09-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James P  Mars Sr → James P Mars Sr Builder Inc; 2019-09-12 to current/open; source msha-controller-operator-history