Major General Danner was born May 3, 1953 in Macon County Missouri. He received a Bachelor of Arts degree Summa Cum Laude, from the University of Missouri-Kansas City in 1977 and a Juris Doctorate from the University of Missouri-Columbia School of Law in 1980. Major General Danner completed a Master of Strategic Studies through the United States Army War College in 2004.
Major General Danner has served in the military for more than 30 years. He enlisted in 1972 and served as a combat engineer, with the 8th Engineer Battalion, 1st Cavalry Division. Major General Danner joined the Missouri National Guard as a member of the Judge Advocate General's Corps in 1981 serving in the 135th Field Artillery Brigade, 70th Troop Command, and 35th Engineer Brigade. Major General Danner has also held several other military assignments including Deputy Chief of Staff, Commander of the 140th Regiment (Regional Training Institute-Missouri), and Assistant Adjutant General-Army. Major General Danner deployed in support of Operation Iraqi Freedom with the 35th Area Support Group from May 2005 to January 2007. Upon his return, he was assigned as the State Judge Advocate. He was appointed by Governor Nixon and confirmed by the Missouri State Senate as Adjutant General in January 2009.
Throughout his career, Major General Danner has received several military awards including the Legion of Merit, the Bronze Star Medal, the Meritorious Service Medal, the Iraqi Campaign Medal, the Global War on Terrorism Service Medal, the National Defense Medal with Two Bronze Service Stars, the Missouri Conspicuous Service Medal, and the Combat Action Badge.
Major General Danner has four children and one grandchild and currently resides with his wife, Kathleen Steele Danner, in Hollister, Missouri.