George William Reigle was born on March 7, 1836, in Union County, Pennsylvania, to George and Sarah Reigle. His father was a farmer who owned $2,000 of real estate and $250 of personal property by 1860. He grew up in Chapman, Pennsylvania, and he moved to Porter, Michigan, in the early 1860s. He married a woman named Mary sometime in the 1860s.
Reigle enlisted in the Union army on February 22, 1864, and he mustered in as a private in Company F of the 12th Michigan Infantry two days later. He supported Abraham Lincoln in the election of 1864, and in November 1864, he declared, "Up with the stars of liberty and down with the lovers of peas for they are devlish in the extreem." He mustered out on February 15, 1866. He returned to Porter after leaving the army, and he earned a living as a farmer. By 1870, he owned $3,000 of real estate and $500 of personal property, and he employed at least one white domestic servant.
His wife may have died in the 1870s, and he married Mary E. Dunbaugh on May 21, 1883. Their son Clarence was born around 1887. He applied for a federal pension in June 1884, claiming that a case of measles had “settled in [his] heart causing heart disease.” Pension officials approved his application. His wife died in 1905, and by 1910, he was living in his son’s household in Porter. He died there of Bright’s disease on November 25, 1913.