# Relationship history for MSHA mine 0100010

Current hierarchy: **Ron J Vetter; Donn J Vetter → Alabama Stone Company → Rockwood Mine**

- 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:** Alabama Limestone Inc → Rockwood Mine; 1950-01-01 to 1990-04-14; source msha-controller-operator-history
- **controller_controls_mine:** Robert I  Rogers → Rockwood Mine; 1950-01-01 to 1990-04-14; source msha-controller-operator-history
- **controller_controls_operator:** Robert I  Rogers → Alabama Limestone Inc; 1950-01-01 to 1990-04-14; source msha-controller-operator-history
- **operator_operates_mine:** Alabama Limetone Inc → Rockwood Mine; 1990-04-15 to 1992-03-25; source msha-controller-operator-history
- **controller_controls_mine:** Eugene G  Rosenthal → Rockwood Mine; 1990-04-15 to 1992-03-25; source msha-controller-operator-history
- **controller_controls_operator:** Eugene G  Rosenthal → Alabama Limetone Inc; 1990-04-15 to 1992-03-25; source msha-controller-operator-history
- **operator_operates_mine:** Alabama Limestone Company Ltd → Rockwood Mine; 1992-03-26 to 1994-09-30; source msha-controller-operator-history
- **controller_controls_mine:** David  Teitelbaum  et al → Rockwood Mine; 1992-03-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Teitelbaum  et al → Alabama Limestone Company Ltd; 1992-03-26 to 1994-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Alabama Cut Stone Inc → Rockwood Mine; 1994-10-01 to 1998-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Robert I  Rogers → Rockwood Mine; 1994-10-01 to 1998-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Robert I  Rogers → Alabama Cut Stone Inc; 1994-10-01 to 1998-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Alabama Stone Company → Rockwood Mine; 1998-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ron J Vetter et al → Rockwood Mine; 1998-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ron J Vetter et al → Alabama Stone Company; 1998-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donn J Vetter et al → Alabama Stone Company; 1998-07-01 to current/open; source msha-controller-operator-history