
Jarman was born in Greensboro, Hale County, on October 31, 1892, to Peter Bryant and Hunter Elizabeth (Gordon) Jarman. His father was a farmer and merchant from Sumter County who served as tax collector from 1892 to 1896 and probate judge from 1896 to 1904. Jarman attended the public schools and the Livingston Normal School (now University of West Alabama) in Livingston, Sumter County, and Southern University (now Birmingham-Southern College) in Greensboro from September 1907 to May 1911. In May 1913, he earned a bachelor's degree from the University of Alabama, where he was a member of the Glee Club and the Sigma Alpha Epsilon social fraternity, Theta Nu Epsilon fraternity, the Skulls, and the "Key Ice" interfraternity organization. After graduation, he worked as a clerk in the probate office of Sumter County from 1913 to 1917 and supervised the farming and cattle interests of his father. Jarman also held his first political office in 1913, when he became chief clerk in the Probate Office in Sumter County; he served for three months as timekeeper for the Mobile Division of the United States Army Corps of Engineers during a flood-relief effort as well.
On May 14, 1917, Jarman volunteered for the U.S. Army and entered the First Officers Training Camp at Fort McPherson, Georgia, in preparation of deployment to France in World War I. He was one of the first Alabamians to attend the school and completed the course with high marks. He was commissioned as a second lieutenant on August 14 and assigned to Camp Gordon, Georgia. He was promoted to first lieutenant in January 1918 and again in July 1918 to adjutant of the 3rd Battalion of the 327th Infantry. Following his deployment to France on May 26, he participated in the St. Mihiel and Argonne Forest offensives before he was gassed and wounded by machine gun fire on October 11, 1918. Remaining in France, Jarman joined the American School Detachment at the University of Montpellier in March 1919 and earned a certificate in July. He also was elected First Commander of the Sumter County American Legion Post while still in France. In August 1919, he returned to the United States as a captain and was discharged at Camp Gordon on September 2. He was appointed by Gov. Thomas Kilby as Assistant State Examiner of Accounts on November 10 of that year.
Jarman was active in the Alabama National Guard and the American Legion. In June 1922, he achieved the rank of major and worked as an inspector general of the Alabama National Guard from 1922 to 1924. In that capacity, he served as a confidential advisor to the adjutant general and determined the state of the economy, efficiency, discipline, morale, and readiness throughout the Alabama National Guard. He was later elevated to lieutenant colonel and from June 1924 to November 1940 served as a division inspector for the Thirty-first Infantry Division, which consisted of guard units from the Southeast. In July 1926, he was elected vice commander of the Third District of Alabama and in August 1927 was elected state commander of the Third Division of the American Legion Department of Alabama. He chaired the Alabama delegation to the American Legion National Convention in Paris in 1927 and in San Antonio in 1928. He belonged to the Veterans of Foreign Wars, the Disabled American Veterans, the Military Order of the World War, the Military Order of the Purple Heart, and the American Legion Forty and Eight. On February 25, 1930, he married Beryl (Bricken) Richardson in Montgomery, Montgomery County. He was a member of the State Democratic Executive Committee for the Sixth Congressional District from November 1926 to November 1930 and became the secretary of state of Alabama in 1931, serving in that capacity until 1934. Jarman then became assistant state comptroller in 1935.

Jarman travelled extensively from 1945 to 1948 as a member of the Foreign Affairs Committee. During June and July of 1945, he flew 34,489 miles around the world inspecting naval bases in 23 countries and island possessions of the United States. From August to September 1945, he represented the Foreign Affairs Committee at the UNRRA Conference in London. He was granted private audiences with Pope Pius XII during his overseas visits to Europe. Two years later, he visited 22 countries in Europe as a member of the joint committee to investigate the U.S. intelligence efforts there. The following year, he participated in a study trip of 14 South American countries as a member of the Foreign Affairs Committee from November 20 to December 17, 1948. He sought re-nomination for the Sixth District seat in 1948, but was defeated and succeeded by Edward deGraffenreid.

Additional Resources
Canon, David T., Garrison Nelson, and Charles Stewart III. Committees in the U.S. Congress 1789-1946. Vol. 3. Washington, D.C.: Congressional Quarterly, 2002.
Peterson B. Jarman Papers, 1892-1955. Alabama Department of Archives and History, Montgomery, Alabama.