# Relationship history for MSHA mine 3002865

Current hierarchy: **Aaron  Olson; Thomas  Olson; Christopher R Smith → Jamestown Macadam Inc → Frew Run Aggregates**

- 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:** Roger  Olson et al → Frew Run Aggregates; 1950-01-01 to 2019-10-26; source msha-controller-operator-history
- **controller_controls_mine:** Daniel R  Hawbaker  et al → Frew Run Aggregates; 1983-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Frew Run Gravel Products Inc → Frew Run Aggregates; 1988-11-01 to 2009-02-18; source msha-controller-operator-history
- **controller_controls_mine:** Michael A  Nelson → Frew Run Aggregates; 1988-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael A  Nelson → Frew Run Gravel Products Inc; 1988-11-01 to 2009-02-18; source msha-controller-operator-history
- **operator_operates_mine:** Glenn O Hawbaker Inc → Frew Run Aggregates; 2009-02-19 to 2017-05-21; source msha-controller-operator-history
- **controller_controls_operator:** Daniel R  Hawbaker  et al → Glenn O Hawbaker Inc; 2009-02-19 to 2017-05-21; source msha-controller-operator-history
- **operator_operates_mine:** Jamestown Macadam Inc → Frew Run Aggregates; 2017-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roger  Olson et al → Jamestown Macadam Inc; 2017-05-22 to 2019-10-26; source msha-controller-operator-history
- **controller_controls_mine:** Michael J  Wellman et al → Frew Run Aggregates; 2019-10-27 to 2021-09-11; source msha-controller-operator-history
- **controller_controls_operator:** Michael J  Wellman et al → Jamestown Macadam Inc; 2019-10-27 to 2021-09-11; source msha-controller-operator-history
- **controller_controls_operator:** Thomas  Olson et al → Jamestown Macadam Inc; 2019-10-27 to 2021-09-11; source msha-controller-operator-history
- **controller_controls_operator:** Aaron  Olson et al → Jamestown Macadam Inc; 2019-10-27 to 2021-09-11; source msha-controller-operator-history
- **controller_controls_mine:** Thomas  Olson et al → Frew Run Aggregates; 2021-09-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas  Olson et al → Jamestown Macadam Inc; 2021-09-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Christopher R Smith et al → Jamestown Macadam Inc; 2021-09-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Aaron  Olson et al → Jamestown Macadam Inc; 2021-09-12 to current/open; source msha-controller-operator-history