# Relationship history for MSHA mine 4500557

Current hierarchy: **Zakary  Fiorito; Stephanie  Fiorito; Stacie  Fiorito; Randy  Fiorito → AAA Monroe Rock Corp → MONROE ROCK**

- 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:** Stoen Construction Company → MONROE ROCK; 1950-01-01 to 1979-02-27; source msha-controller-operator-history
- **controller_controls_mine:** Stoen Milo & Glen → MONROE ROCK; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stoen Milo & Glen → Stoen Construction Company; 1950-01-01 to 1979-02-27; source msha-controller-operator-history
- **operator_operates_mine:** Monroe Quarry Inc → MONROE ROCK; 1979-02-28 to 1979-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Hughes Pat → MONROE ROCK; 1979-02-28 to 1979-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Hughes Pat → Monroe Quarry Inc; 1979-02-28 to 1979-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Dan  Fiorito  et al → MONROE ROCK; 1979-08-22 to 2017-03-12; source msha-controller-operator-history
- **operator_operates_mine:** Monroe Quarry Inc → MONROE ROCK; 1979-11-01 to 1982-12-09; source msha-controller-operator-history
- **controller_controls_mine:** Donald S  Gerard → MONROE ROCK; 1979-11-01 to 1982-12-09; source msha-controller-operator-history
- **controller_controls_operator:** Donald S  Gerard → Monroe Quarry Inc; 1979-11-01 to 1982-12-09; source msha-controller-operator-history
- **operator_operates_mine:** AAA Monroe Rock Corp → MONROE ROCK; 1982-12-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dan  Fiorito  et al → AAA Monroe Rock Corp; 1982-12-10 to 2017-03-12; source msha-controller-operator-history
- **controller_controls_mine:** Zakary  Fiorito et al → MONROE ROCK; 2017-03-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Zakary  Fiorito et al → AAA Monroe Rock Corp; 2017-03-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stephanie  Fiorito et al → AAA Monroe Rock Corp; 2017-03-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randy  Fiorito et al → AAA Monroe Rock Corp; 2017-03-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stacie  Fiorito et al → AAA Monroe Rock Corp; 2017-03-13 to current/open; source msha-controller-operator-history