Bachtold was born on 22 August 1891 at Stanningley, the son of Heinrich and Ann Bachtold. He was educated at the University of Manchester between 1908 and 1910 and graduated with a Bachelor of Engineering. Bachtold immigrated to Australia in August 1911 and shortly afterwards became an engineering draftsman with New South Wales Government Railways. He enlisted in the 1st Australian Imperial Force with the rank of second lieutenant on 23 September 1914. Bachtold was posted to the 1st Field Company of the Australian Engineers. The 1st Field Company departed Melbourne on 22 December 1914 aboard HMAT Berrima. Bachtold participated in the initial landing at ANZAC Cove on 25 April 1915 and was awarded a Military Cross for gallantry under fire and mentioned in despatches. He was promoted to lieutenant on the day of the landing and was promoted again to temporarycaptain in July 1915. Bachtold participated in the building of tunnels for mines under the Turkish lines. In November 1915, Bachtold was transferred to Egypt on special duty and was confirmed as a captain a month later. In March 1916, Bachtold took command of the 14th Field Company, and was promoted to major on 19 April. The 14th Field Company embarked for France in June 1916 and joined the fighting on the Western Front the following month, serving around Pas-de-Calais until October when the company was moved to the Somme Department. Bachtold was mentioned in despatches a second time in January 1917. In March 1917, the company participated in the pursuit after the German withdrawal to the Hindenburg Line. Bachtold was mentioned in despatches a third time in June 1917. He acted as the Commander, Royal Engineers, 5th Australian Division four times between April 1917 and January 1918, and was appointed as a Companion of the Distinguished Service Order for gallantry at the Battle of Polygon Wood. In May 1918, Bachtold became the Commander Royal Engineers, 3rd Australian Division, and was promoted to temporary lieutenant colonel on 8 June 1918. He was later confirmed in that rank. He was mentioned in despatches a fourth time in December 1918.
Later life
Bachtold returned to Australia on 8 July 1919 with his wife, Dorothy Garner, whom he had married the previous year. He was transferred to the Reserve of Officers in 1922. Bachtold was called up in the Citizen Military Forcesin September 1940. Bachtold became Chief Engineer Eastern Command in February 1941 as a temporary colonel. Between April 1942 and March 1943, Bachtold was the Chief Engineer II Corps. He was transferred to the Reserve of Officers as an honorary brigadier in July 1943. He was appointed as the Railways' Assistant Chief Civil Engineer, Workshops in July 1946. Bachtold retired in November 1952. Bachtold died on 9 May 1983 at the age of 91. He is buried at the Woronora Cemetery and Crematorium.
