# USS John C. Calhoun

> 1963 James Madison-class submarine

**Wikidata**: [Q2469792](https://www.wikidata.org/wiki/Q2469792)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/USS_John_C._Calhoun)  
**Source**: https://4ort.xyz/entity/uss-john-c-calhoun