# Relationship history for MSHA mine 3002595

Current hierarchy: **Timothy  Hubbard → Tim Hubbard Gravel Supply → Tim Hubbard Gravel Supply**

- 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:** Town Of Avoca → Tim Hubbard Gravel Supply; 1981-06-01 to 1996-03-27; source msha-controller-operator-history
- **controller_controls_mine:** Town Of Avoca-NY → Tim Hubbard Gravel Supply; 1981-06-01 to 1996-03-27; source msha-controller-operator-history
- **controller_controls_operator:** Town Of Avoca-NY → Town Of Avoca; 1981-06-01 to 1996-03-27; source msha-controller-operator-history
- **operator_operates_mine:** Hubbard Farm's → Tim Hubbard Gravel Supply; 1996-03-28 to 2005-11-14; source msha-controller-operator-history
- **controller_controls_mine:** Hubbard David Sr → Tim Hubbard Gravel Supply; 1996-03-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hubbard David Sr → Hubbard Farm's; 1996-03-28 to 2005-11-14; source msha-controller-operator-history
- **operator_operates_mine:** Hub Boy Gravel → Tim Hubbard Gravel Supply; 2005-11-15 to 2019-03-27; source msha-controller-operator-history
- **controller_controls_mine:** Gretchen N  Hubbard et al → Tim Hubbard Gravel Supply; 2005-11-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gretchen N  Hubbard et al → Hub Boy Gravel; 2005-11-15 to 2019-03-27; source msha-controller-operator-history
- **controller_controls_operator:** David J  Hubbard et al → Hub Boy Gravel; 2005-11-15 to 2019-03-27; source msha-controller-operator-history
- **operator_operates_mine:** Tim Hubbard Gravel Supply → Tim Hubbard Gravel Supply; 2019-03-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Timothy  Hubbard → Tim Hubbard Gravel Supply; 2019-03-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy  Hubbard → Tim Hubbard Gravel Supply; 2019-03-28 to current/open; source msha-controller-operator-history