# Relationship history for MSHA mine 3606061

Current hierarchy: **Carl  Neidlinger; Edmund  Neidlinger → S N & N Coal Company → No 2 Mammoth Slope**

- 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:** Mace Dennis R Et Al → No 2 Mammoth Slope; 1974-12-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** M L & K Coal Company → No 2 Mammoth Slope; 1976-04-21 to 1977-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Klinger Palmer → No 2 Mammoth Slope; 1976-04-21 to 1977-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Klinger Palmer → M L & K Coal Company; 1976-04-21 to 1977-04-30; source msha-controller-operator-history
- **operator_operates_mine:** L & K Coal Company → No 2 Mammoth Slope; 1977-05-01 to 1979-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Lucas Robert T Et Al → No 2 Mammoth Slope; 1977-05-01 to 1979-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Lucas Robert T Et Al → L & K Coal Company; 1977-05-01 to 1979-02-28; source msha-controller-operator-history
- **operator_operates_mine:** C S & S Coal Company → No 2 Mammoth Slope; 1979-03-01 to 1981-09-01; source msha-controller-operator-history
- **controller_controls_mine:** Conway Thomas Et Al → No 2 Mammoth Slope; 1979-03-01 to 1981-09-01; source msha-controller-operator-history
- **controller_controls_operator:** Conway Thomas Et Al → C S & S Coal Company; 1979-03-01 to 1981-09-01; source msha-controller-operator-history
- **operator_operates_mine:** K M & K Coal Company → No 2 Mammoth Slope; 1981-09-02 to 1983-10-02; source msha-controller-operator-history
- **controller_controls_operator:** Mace Dennis R Et Al → K M & K Coal Company; 1981-09-02 to 1983-10-02; source msha-controller-operator-history
- **controller_controls_mine:** Carl  Neidlinger et al → No 2 Mammoth Slope; 1983-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** S N & N Coal Company → No 2 Mammoth Slope; 1983-10-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Neidlinger et al → S N & N Coal Company; 1983-10-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edmund  Neidlinger et al → S N & N Coal Company; 1983-10-03 to current/open; source msha-controller-operator-history