# Relationship history for MSHA mine 3901448

Current hierarchy: **Trace G O'Connell; Glenn A O'Connell → O'Connell Construction Inc → Screener #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:** O'Connell Construction Inc → Screener #1; 2000-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Glenn  O'Connell → Screener #1; 2000-07-01 to 2023-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Glenn  O'Connell → O'Connell Construction Inc; 2000-07-01 to 2023-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Glenn A O'Connell et al → Screener #1; 2024-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Glenn A O'Connell et al → O'Connell Construction Inc; 2024-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Trace G O'Connell et al → O'Connell Construction Inc; 2024-01-01 to current/open; source msha-controller-operator-history