# Relationship history for MSHA mine 3003980

Current hierarchy: **Alfred  Gorick Jr → Alfred Gorick Co., Inc → Trim Street Quarry**

- 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

- **controller_controls_mine:** Alfred  Gorick Jr → Trim Street Quarry; 1990-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jeanette M Roberts et al → Trim Street Quarry; 2005-08-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Roberts' Stone → Trim Street Quarry; 2016-10-12 to 2018-04-14; source msha-controller-operator-history
- **controller_controls_operator:** Jeanette M Roberts et al → Roberts' Stone; 2016-10-12 to 2018-04-14; source msha-controller-operator-history
- **controller_controls_operator:** Joseph L  Roberts et al → Roberts' Stone; 2016-10-12 to 2018-04-14; source msha-controller-operator-history
- **operator_operates_mine:** Alfred Gorick Co., Inc → Trim Street Quarry; 2018-04-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alfred  Gorick Jr → Alfred Gorick Co., Inc; 2018-04-15 to current/open; source msha-controller-operator-history