Frederic W. Lincoln Jr. Republican Frederic W. Lincoln Jr. Republican The 1863 Boston mayoral election was held on December 14, 1863[1] and saw Frederic W. Lincoln Jr. reelected to a fifth overall term.

The Republican Party renominated Mayor Lincoln.

Thomas P. Rich was nominated by the Democratic Party.

Breakaway members of the Democratic Party formed the "Workingmen's" ticket and nominated Samuel R.

Spinney.