# Relationship history for MSHA mine 3608280

Current hierarchy: **Donald T  Rosini; William E  Rosini → Rosini Enterprises, Inc. → Nelson Bank**

- 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:** Rosini Enterprises Inc → Nelson Bank; 1991-09-01 to 2002-04-24; source msha-controller-operator-history
- **controller_controls_mine:** William E  Rosini et al → Nelson Bank; 1991-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William E  Rosini et al → Rosini Enterprises Inc; 1991-09-01 to 2002-04-24; source msha-controller-operator-history
- **controller_controls_operator:** Donald T  Rosini et al → Rosini Enterprises Inc; 1991-09-01 to 2002-04-24; source msha-controller-operator-history
- **operator_operates_mine:** Devil's Hole Inc. → Nelson Bank; 2002-04-25 to 2012-03-18; source msha-controller-operator-history
- **controller_controls_mine:** Gene B  Gangloff → Nelson Bank; 2002-05-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gene B  Gangloff → Devil's Hole Inc.; 2002-05-14 to 2012-03-18; source msha-controller-operator-history
- **operator_operates_mine:** Rosini Enterprises, Inc. → Nelson Bank; 2012-03-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William E  Rosini et al → Rosini Enterprises, Inc.; 2012-03-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donald T  Rosini et al → Rosini Enterprises, Inc.; 2012-03-19 to current/open; source msha-controller-operator-history