Alexander Kelly McClure (January 9, 1828 – June 6, 1909) was an American politician, newspaper editor, and writer from Pennsylvania.

McClure was appointed to the staff of the first Whig governor of Pennsylvania, William F. Johnston, with the honorary rank of colonel.

In 1850, Millard Fillmore appointed McClure deputy United States Marshal for Juniata County.

McClure and Andrew G. Curtin helped swing the state's vote away from Cameron and William Seward to Abraham Lincoln.

[6] McClure was commissioned by President Lincoln as an assistant adjutant general with the rank of major on September 6, 1862.

He was tasked with raising seventeen Pennsylvania regiments for induction into the U.S. Army[1] and served until he resigned his commission on February 27, 1863.

The following July, Confederates under then Colonel Eppa Hunton crossed the Potomac River and destroyed railroad property in Chambersburg en route to the Battle of Gettysburg, but noted McClure's hospitality.

[9] In 1864, McClure moved to Philadelphia, opened a law office[10] and helped Lincoln carry Pennsylvania again in the general election.

He lost much of his fortune in the stock market but was able to obtain an appointment as prothonotary of the Supreme Court of Pennsylvania.

[6] McClure died on June 6, 1909, in Wallingford, Pennsylvania and was buried at Laurel Hill Cemetery in Philadelphia.