Daniel N. Morgan spent several years in local governance, including service on the Bridgeport common council and the Bridgeport Board of Education. He later became president of the City National Bank of Bridgeport and served two terms as mayor of the city. Morgan transitioned to federal service as the Treasurer of the United States under President Grover Cleveland. Despite a legal incident in 1911, his career reflects a blend of financial and public sector leadership.

Daniel N. Morgan's political career showcases a blend of local governance and national finance, marked by a calculated approach to regional economic interests. His tenure as mayor of Bridgeport and treasurer of the United States reveals a unique intersection of local and federal financial oversight. Morgan's involvement in local business, such as his partnership in Birdsey & Morgan and presidency of the City National Bank, suggests a deeply rooted commitment to economic stability at both local and national levels. Yet, his arrest for mail fraud in 1911, despite being exonerated, hints at a controversial and complex personal history that raises questions about his integrity and judgment.