Alexander Bullock graduated from Amherst College and Harvard Law School, establishing a strong educational foundation. He began his career in public service early, serving in various capacities including as a military assistant to Governor John Davis and editor of the National Aegis. Bullock held positions in both houses of the Massachusetts legislature, where he notably served as Speaker of the House during the Civil War. As governor, he focused on improving state finances, advocating for women's suffrage, and enforcing alcohol prohibition laws. Post-governorship, he returned to the private sector, declining further political offers.

Alexander Bullock's political career is marked by a blend of progressive advocacy and conservative enforcement, particularly in his stance on alcohol prohibition. He championed women's suffrage and labor reforms while simultaneously enforcing strict alcohol prohibition laws, revealing a complex approach to social issues. Bullock's support for state-funded infrastructure, like railroads and public libraries, indicates a pragmatic yet ideologically driven vision for economic development and public welfare. His tenure as governor showcased a unique tension between progressive social policies and stringent law enforcement.