# Relationship history for MSHA mine 3605393

Current hierarchy: **Vincent  Guarna; Michael  Guarna → Fox Coal Company Inc → Lavelle Bank**

- 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:** Smith Darvin C--Allen R Kramer Et Al → Lavelle Bank; 1974-04-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** K & S Coal Company → Lavelle Bank; 1975-01-03 to 1975-04-14; source msha-controller-operator-history
- **controller_controls_operator:** Smith Darvin C--Allen R Kramer Et Al → K & S Coal Company; 1975-01-03 to 1975-04-14; source msha-controller-operator-history
- **operator_operates_mine:** Feran Industries Inc → Lavelle Bank; 1975-04-15 to 1981-12-03; source msha-controller-operator-history
- **controller_controls_mine:** Hoffman Nickolas & Gerard N → Lavelle Bank; 1975-04-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hoffman Nickolas & Gerard N → Feran Industries Inc; 1975-04-15 to 1981-12-03; source msha-controller-operator-history
- **controller_controls_mine:** Di Pippo Leonard → Lavelle Bank; 1980-10-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Valley Forge Coal Corp → Lavelle Bank; 1981-12-04 to 1984-10-18; source msha-controller-operator-history
- **controller_controls_operator:** Di Pippo Leonard → Valley Forge Coal Corp; 1981-12-04 to 1984-10-18; source msha-controller-operator-history
- **operator_operates_mine:** Richard E Tallman → Lavelle Bank; 1984-10-19 to 2007-08-07; source msha-controller-operator-history
- **controller_controls_mine:** Tallman Richard E → Lavelle Bank; 1984-10-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tallman Richard E → Richard E Tallman; 1984-10-19 to 2007-08-07; source msha-controller-operator-history
- **controller_controls_mine:** Vincent  Guarna et al → Lavelle Bank; 2006-10-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Fox Coal Company Inc → Lavelle Bank; 2007-08-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vincent  Guarna et al → Fox Coal Company Inc; 2007-08-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Guarna et al → Fox Coal Company Inc; 2007-08-08 to current/open; source msha-controller-operator-history