# Relationship history for MSHA mine 3800629

Current hierarchy: **J Bryan  Ware → Santee Rock Products Corp → Mine #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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Santee Rock Products Corp → Mine #1; 1988-08-01 to 1989-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Miller Larry E → Mine #1; 1988-08-01 to 1989-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Miller Larry E → Santee Rock Products Corp; 1988-08-01 to 1989-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Santee Rock Products Corp → Mine #1; 1989-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** J Bryan  Ware → Mine #1; 1989-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** J Bryan  Ware → Santee Rock Products Corp; 1989-09-01 to current/open; source msha-controller-operator-history