# Relationship history for MSHA mine 3503701

Current hierarchy: **Thomas S  Hafer; Tara Joe  Hafer → Hafer & Sons Construction LLC → Moffit 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

- **operator_operates_mine:** Moffit Bros. LLC → Moffit Quarry; 2008-07-11 to 2024-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth W  Moffit et al → Moffit Quarry; 2008-07-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth W  Moffit et al → Moffit Bros. LLC; 2008-07-11 to 2024-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Max V  Moffit et al → Moffit Bros. LLC; 2008-07-11 to 2024-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Hafer & Sons Construction LLC → Moffit Quarry; 2024-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tara Joe  Hafer et al → Moffit Quarry; 2024-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tara Joe  Hafer et al → Hafer & Sons Construction LLC; 2024-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas S  Hafer et al → Hafer & Sons Construction LLC; 2024-08-01 to current/open; source msha-controller-operator-history