John Quincy II Adams

American lawyer and politician.

Adams was the son of Charles Francis Adams Sr and Abigail Brown Brooks, the grandson and namesake of President John Quincy Adams and the great-grandson of President John Adams. He graduated from Harvard University in 1853, studied law, attained admission to the bar, and practiced in Boston. He later established an experimental model farm near Quincy, Massachusetts. Adams married Frances (Fanny) Cadwalader Crowninshield (1839–1911).

During the Civil War he served on the staff of Governor John Andrew with the rank of Colonel.

Adams was elected to the Massachusetts state legislature as a Republican, but soon switched to the Democratic Party because of his disaffection with Republican Reconstruction policies. He served in the Massachusetts House of Representatives in 1865, 1867, 1870 and 1873.

Adams received one vote for the Democratic nomination for President of the United States at the 1868 Democratic National Convention. In 1872 the faction of Democrats that refused to support Horace Greeley nominated Charles O'Conor for president and John Quincy Adams II for vice-president on the "straight Democratic" ticket. They declined, but their names remained on the ballot in some states. After losing an election for lieutenant governor in 1876, Adams refused most further involvement in politics, though he was considered by Grover Cleveland for a cabinet position in 1893.

He died on August 14, 1894 in Quincy.