# Relationship history for MSHA mine 3601616

Current hierarchy: **Louis  DeNaples Jr; Dominic  DeNaples → C. S. Y. Inc → Baker #1**

- 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

- **operator_operates_mine:** Coalbrook Iron & Metal Company Inc → Baker #1; 1950-01-01 to 1982-08-16; source msha-controller-operator-history
- **controller_controls_mine:** Baumann John C → Baker #1; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Baumann John C → Coalbrook Iron & Metal Company Inc; 1950-01-01 to 1982-08-16; source msha-controller-operator-history
- **controller_controls_mine:** Lotzi Frank → Baker #1; 1974-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** F J F Coal Company Inc → Baker #1; 1982-08-17 to 1995-01-08; source msha-controller-operator-history
- **controller_controls_operator:** Lotzi Frank → F J F Coal Company Inc; 1982-08-17 to 1995-01-08; source msha-controller-operator-history
- **operator_operates_mine:** West Elm Street Company Inc → Baker #1; 1995-01-09 to 1999-02-02; source msha-controller-operator-history
- **controller_controls_mine:** Grecco Ralph → Baker #1; 1995-01-09 to 1999-02-02; source msha-controller-operator-history
- **controller_controls_operator:** Grecco Ralph → West Elm Street Company Inc; 1995-01-09 to 1999-02-02; source msha-controller-operator-history
- **operator_operates_mine:** C. S. Y. Inc → Baker #1; 1999-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** La Valle Pat → Baker #1; 1999-02-03 to 2002-11-26; source msha-controller-operator-history
- **controller_controls_operator:** La Valle Pat → C. S. Y. Inc; 1999-02-03 to 2002-11-26; source msha-controller-operator-history
- **controller_controls_mine:** Dominic  DeNaples et al → Baker #1; 2002-11-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dominic  DeNaples et al → C. S. Y. Inc; 2002-11-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Louis  DeNaples Jr et al → C. S. Y. Inc; 2002-11-27 to current/open; source msha-controller-operator-history