He joined the John Birch Society, and was the founder of the controversial Veritas Foundation, dedicated to the routing out of presumed socialist influence at Harvard and other major colleges and universities. During the early 1950s he became affiliated with a variety of right wing organizations and causes. After the end of World War II he formed the investment firm of Roosevelt and Cross, a brokerage house specializing in municipal bonds. In August 1943 he was wounded by an enemy grenade which shattered the same knee that had been injured in World War I and for which he had been earlier medically retired, earning him the distinction of being the only American soldier to ever be classified as 100% disabled twice for the same wound incurred in two different wars. He saw action in the Salamaua Campaign and his exemplary service was recognized when one of the hotly contested ridge-lines northwest of the island's Tambu Bay was named in his honor. Roosevelt to rejoin the US Army with a commission as a lieutenant colonel and was given command of the US Army's 2nd Battalion of the 162nd Infantry also called the 162 Regimental Combat Team, (RCT), 41st Infantry Division in New Guinea. In early 1943, after the US Entered World War II, he petitioned President Franklin D. He then accepted a job working for a cousin in the family investment firm, Roosevelt & Son. As a result of the Teapot Dome Scandal in 1922, he resigned his position with Sinclair and was not implicated of any wrongdoing during the course of the Congressional investigation. After returning from France, he worked for a time as an executive with the Sinclair Consolidated Oil Company, as vice president of the Union Petroleum Company, the export auxiliary subsidiary of Sinclair Consolidated. He was severely wounded to the point that he was discharged from the US Army with a full disability. Soon after graduating from Harvard, the US entered World War I and he enlisted in the US Army and was sent to France where he achieved the rank of captain while serving with the US 1st Infantry Division. He attended the Groton School, a private college preparatory boarding school in Groton, Massachusetts but was expelled and he continued his education at the Phillips Academy in Andover, Massachusetts, the Evans School for Boys in Mesa, Arizona, and Harvard University at Cambridge, Massachusetts, where he graduated in 1917. As a child, he was quiet and reserved but could be very mischievous, especially with his younger brother Quentin. A highly decorated US Army veteran of World Wars I and II, he distinguished himself in combat action. Nicknamed 'Archie' he was the 5th child of 26th US President Theodore Roosevelt and his 2nd wife Edith Kermit Carow Roosevelt.

Archibald roosevelt