Albert H. Kingman was born on October 25, 1835, in Claremont, New Hampshire, to Alvin and Lucinda Kingman. His father was a cabinet maker. He grew up and attended school in Keene, New Hampshire.
He enlisted in the Union army on August 28, 1861, and he mustered in as a private in Company E of the 1st United States Sharpshooters on September 9. According to his service records, he was 5 feet, 6 inches tall, with dark hair and brown eyes. The regiment took part in the Peninsula campaign, the Seven Days’ Battles, the Second Battle of Manassas, the Battle of Antietam, the Battle of Fredericksburg, the Battle of Chancellorsville, the Battle of Gettysburg, the Overland Campaign, and the siege of Petersburg. He suffered from sun stroke sometime during his military service. He mustered out on September 9, 1864.
He returned to Keene after the war, and he earned a living as a farmer. He married Persis Rice, and they had at least five children: Arthur, born around 1866; Mary, born around 1867; Herbert, born around 1869; Winnie, born around 1871; and Martha, born around 1875. By 1870, he owned $2,000 of real estate. They moved to Walpole, New Hampshire, in the 1870s. He applied for a federal pension in July 1885 and eventually received one. By 1900, he was living in Westmoreland, New Hampshire. He died there of heart disease on March 27, 1908.