# Relationship history for MSHA mine 3401790

Current hierarchy: **Elton  Ollar; Ed  Decker → Ollar-Decker LLC → Milton Mine**

- 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:** Kenneth  Richardson et al → Milton Mine; 1995-03-01 to 1996-07-31; source msha-controller-operator-history
- **operator_operates_mine:** H M I → Milton Mine; 1995-07-01 to 1996-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth  Richardson et al → H M I; 1995-07-01 to 1996-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Georges Colliers Inc → Milton Mine; 1996-08-01 to 2003-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Craig K  Jackson → Milton Mine; 1996-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Craig K  Jackson → Georges Colliers Inc; 1996-08-01 to 2003-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Ollar-Decker LLC → Milton Mine; 2003-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ed  Decker et al → Milton Mine; 2003-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ed  Decker et al → Ollar-Decker LLC; 2003-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elton  Ollar et al → Ollar-Decker LLC; 2003-06-01 to current/open; source msha-controller-operator-history