# Relationship history for MSHA mine 2800519

Current hierarchy: **Gonnello Frank → F Gonnello Trucking Corp Sand & Gravel Div → F Gonnello Trucking S & G Division**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Mountain Excavating → F Gonnello Trucking S & G Division; 1950-01-01 to 1980-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Mauriello Anthony & Dennis Capello → F Gonnello Trucking S & G Division; 1950-01-01 to 1980-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Mauriello Anthony & Dennis Capello → Mountain Excavating; 1950-01-01 to 1980-03-31; source msha-controller-operator-history
- **operator_operates_mine:** F Gonnello Trucking Corp Sand & Gravel Div → F Gonnello Trucking S & G Division; 1980-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gonnello Frank → F Gonnello Trucking S & G Division; 1980-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gonnello Frank → F Gonnello Trucking Corp Sand & Gravel Div; 1980-04-01 to current/open; source msha-controller-operator-history