# Relationship history for MSHA mine 4104621

Current hierarchy: **Howling Dog Management, LLC; Bryan  Wolff; Elizabeth  Wolff; Clinton C W → Wolff Construction, LP → 5 Womans Materials**

- 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:** James E  Cox → 5 Womans Materials; 2005-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kirby Stone Company LLC → 5 Womans Materials; 2006-09-15 to 2015-06-03; source msha-controller-operator-history
- **controller_controls_operator:** James E  Cox → Kirby Stone Company LLC; 2006-09-15 to 2015-06-03; source msha-controller-operator-history
- **controller_controls_mine:** James  Cox et al → 5 Womans Materials; 2015-06-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kirby Limestone, LLC → 5 Womans Materials; 2015-06-04 to 2021-08-11; source msha-controller-operator-history
- **controller_controls_operator:** James  Cox et al → Kirby Limestone, LLC; 2015-06-04 to 2021-08-11; source msha-controller-operator-history
- **controller_controls_operator:** Thomas  Wood et al → Kirby Limestone, LLC; 2015-06-04 to 2021-08-11; source msha-controller-operator-history
- **controller_controls_mine:** Bryan  Wolff et al → 5 Womans Materials; 2018-03-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Wolff Construction, LP → 5 Womans Materials; 2021-08-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bryan  Wolff et al → Wolff Construction, LP; 2021-08-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clinton C Wolff et al → Wolff Construction, LP; 2021-08-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elizabeth  Wolff et al → Wolff Construction, LP; 2021-08-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Howling Dog Management, LLC → Wolff Construction, LP; 2021-08-12 to current/open; source msha-controller-operator-history