# Relationship history for MSHA mine 4407044

Current hierarchy: **Susie A  Smith; Elmer  Fuller → AB&J Coal Co., Inc. → No. 4**

- 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:** Elmer  Fuller et al → No. 4; 1994-09-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** AB&J Coal Co., Inc. → No. 4; 2002-02-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elmer  Fuller et al → AB&J Coal Co., Inc.; 2002-02-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Susie A  Smith et al → AB&J Coal Co., Inc.; 2002-02-13 to current/open; source msha-controller-operator-history