John Geddes holds a solid educational foundation from the College of Charleston and pursued a legal career, gaining admission to the bar in 1797. He transitioned from a military role in the South Carolina militia, rising to the rank of Major General, to significant political leadership positions. Geddes served as Speaker of the South Carolina House of Representatives and later as a Senator, culminating in a term as Governor of South Carolina. His career also included a stint as mayor of Charleston, showcasing his commitment to local governance and broader state leadership.

John Geddes combines a fervent advocacy for Republican economic policies with a notable dedication to local governance, as seen in his service as Mayor of Charleston. His military leadership roles, from Cavalry Major to Brigadier General, suggest a strategic approach to authority that blends ideological commitment with a pragmatic focus on regional stability. Geddes's personal conduct, particularly the duel that resulted in a fatal outcome, underscores a rigid adherence to honor, revealing a tension between his ideological rigidity and the human costs of such principles.