What is the rank associated with the title 'Father of the Navy'?

The title 'Father of the Navy' is associated with the rank of Captain, specifically referring to John Paul Jones, who is recognized as a foundational figure in the establishment of the United States Navy. His leadership and naval battles during the American Revolutionary War were pivotal in shaping the early navy, hence earning him this honorary title. It reflects not only his rank but also the significant contributions he made to naval warfare and maritime strategy, thus solidifying his legacy in American naval history.