# Relationship history for MSHA mine 1519087

Current hierarchy: **Harold E  Akers; Jim D  Akers → Calvary Enterprises, LLC → Mine #1A**

- 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 River Coal Company → Mine #1A; 1988-09-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Harold E  Akers et al → Mine #1A; 2001-12-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jerry  Tackett → Mine #1A; 2005-12-19 to 2008-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Genesis Coal Corporation → Mine #1A; 2007-02-26 to 2010-02-11; source msha-controller-operator-history
- **controller_controls_operator:** Jerry  Tackett → Genesis Coal Corporation; 2007-02-26 to 2008-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Jimmy D  Tackett → Mine #1A; 2008-03-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Yatesville Coal Holdings Inc → Mine #1A; 2008-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Yatesville Coal Holdings Inc → Genesis Coal Corporation; 2008-07-01 to 2010-02-11; source msha-controller-operator-history
- **operator_operates_mine:** Calvary Coal Corp → Mine #1A; 2010-02-12 to 2012-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Jimmy D  Tackett → Calvary Coal Corp; 2010-02-12 to 2012-04-30; source msha-controller-operator-history
- **operator_operates_mine:** McCoy Elkhorn Coal Corporation → Mine #1A; 2012-05-01 to 2014-05-20; source msha-controller-operator-history
- **controller_controls_operator:** James River Coal Company → McCoy Elkhorn Coal Corporation; 2012-05-01 to 2014-05-20; source msha-controller-operator-history
- **operator_operates_mine:** Calvary Enterprises, LLC → Mine #1A; 2014-05-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harold E  Akers et al → Calvary Enterprises, LLC; 2014-05-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim D  Akers et al → Calvary Enterprises, LLC; 2014-05-21 to current/open; source msha-controller-operator-history