# Relationship history for MSHA mine 3102260

Current hierarchy: **Jerry Keith Adams → Tarheel Sand & Stone Inc. → Aaron Sand  Mine #61**

- 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:** Sandra  Beeman → Aaron Sand  Mine #61; 1992-06-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jerry Keith Adams → Aaron Sand  Mine #61; 1995-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Aaron Sand & Gravel Div of WOT Inc → Aaron Sand  Mine #61; 2010-10-20 to 2014-08-24; source msha-controller-operator-history
- **controller_controls_operator:** Sandra  Beeman → Aaron Sand & Gravel Div of WOT Inc; 2010-10-20 to 2014-08-24; source msha-controller-operator-history
- **operator_operates_mine:** Tarheel Sand & Stone Inc. → Aaron Sand  Mine #61; 2014-08-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry Keith Adams → Tarheel Sand & Stone Inc.; 2014-08-25 to current/open; source msha-controller-operator-history