paragraph_text: Mickey Vernon was born in Marcus Hook, Pennsylvania, and attended Villanova University, before making his major league debut on July 8, 1939. He was the father of Gay Vernon.

paragraph_text: Marilyn Erskine (born April 24, 1926) is an American actress who started performing at the age of three on radio, and has since appeared in radio, theater, film and television roles from the 1920s through the 1970s.

paragraph_text: Leslie Crum Aiello (born May 26, 1946 in Pasadena, California) is an American paleoanthropologist and professor emeritus of the University College London. She has been the President of Axel Lennart Wenner-Gren donated Wenner-Gren Foundation for Anthropological Research from 2005 to 2017. In 2014 Dr. Aiello was elected to the American Philosophical Society. She is currently President of the American Association of Physical Anthropologists.

paragraph_text: Thomas Erskine May, 1st Baron Farnborough, (8 February 1815 – 17 May 1886) was a British constitutional theorist and Clerk of the House of Commons.

paragraph_text: Service Dress was the new style of khaki service dress uniform introduced by the British Army for use in the field from the early 1900s, following the experiences of a number of imperial wars and conflicts, including the Second Boer War. This variant of uniform continues to be worn today, although only in a formal role, as No. 2 Pattern dress.

paragraph_text: I Start Counting is a British thriller film released in 1970, directed by David Greene and starring Jenny Agutter in one of her first major roles. It was based on the 1966 novel of the same name by Audrey Erskine Lindop.

paragraph_text: "Country Music is Here to Stay" is the first single by singer Ferlin Husky with Capitol Records under the pseudonym Simon Crum. The song peaked at No. 2 on "Billboard" Hot Country Songs chart for three weeks.

paragraph_text: Bikini Barbershop (Also known as Bikini Barbershop: Jersey) is an American reality show on AXS TV featuring Jeff Wulkan, a man who runs a hair salon/barber shop in Long Branch, New Jersey called "Bikini Barbers". It mainly consists of female hair stylists, at work, wearing only bikinis. Following Hurricane Sandy, a drop in business forced the closure of the shop.

paragraph_text: The United States Air Force (USAF) is the aerial warfare service branch of the United States Armed Forces and one of the seven American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on 18 September 1947 under the National Security Act of 1947. It is the most recent branch of the U.S. military to be formed, and is the largest and one of the world's most technologically advanced air forces. The USAF articulates its core functions as Nuclear Deterrence Operations, Special Operations, Air Superiority, Global Integrated ISR, Space Superiority, Command and Control, Cyberspace Superiority, Personnel Recovery, Global Precision Attack, Building Partnerships, Rapid Global Mobility and Agile Combat Support.

paragraph_text: USS "Mount Vernon" (AP-22) was a troop transport that served with the United States Navy during World War II. Prior to her military service, she was a luxury ocean liner named SS "Washington".

paragraph_text: The Republic of China Military Police (ROCMP; ) is a military police body under the Ministry of National Defense of Taiwan (Republic of China). Unlike military police in many other countries, ROCMP is a separate branch of the ROC Armed Forces. ROCMP is responsible for protecting government leaders from assassination or capture, guarding Taiwan’s strategic facilities, and counterintelligence against enemy infiltrators, spies, and saboteurs.

paragraph_text: Lieutenant-General Vernon Forbes Erskine-Crum, CIE, MC (11 December 1918 – 17 March 1971) was a British Army officer, who briefly served as General Officer Commanding in Northern Ireland during the early period of the Troubles.

paragraph_text: William Douglas, 6th Earl of Morton (c. 1540 – 1606) was the son of Sir Robert Douglas of Lochleven and Margaret Erskine, a former mistress of James V of Scotland.

paragraph_text: The USAF is the only branch of the U.S. military where NCO status is achieved when an enlisted person reaches the pay grade of E-5. In all other branches, NCO status is generally achieved at the pay grade of E-4 (e.g., a Corporal in the Army and Marine Corps, Petty Officer Third Class in the Navy and Coast Guard). The Air Force mirrored the Army from 1976 to 1991 with an E-4 being either a Senior Airman wearing three stripes without a star or a Sergeant (referred to as "Buck Sergeant"), which was noted by the presence of the central star and considered an NCO. Despite not being an NCO, a Senior Airman who has completed Airman Leadership School can be a supervisor according to the AFI 36-2618.

paragraph_text: In the same war, the Prussian Edward Schnell served the Aizu domain as a military instructor and procurer of weapons. He was granted the Japanese name Hiramatsu Buhei (平松武兵衛), which inverted the characters of the daimyo's name Matsudaira. Hiramatsu (Schnell) was given the right to wear swords, as well as a residence in the castle town of Wakamatsu, a Japanese wife, and retainers. In many contemporary references, he is portrayed wearing a Japanese kimono, overcoat, and swords, with Western riding trousers and boots.

paragraph_text: Vernon is an unincorporated community and census-designated place (CDP) in Apache County, Arizona, United States. As of the 2010 census it had a population of 122. Vernon is east of Show Low. Vernon has a post office with ZIP code 85940.

paragraph_text: The video for the song, considered by many to be a definitive music video for Aerosmith, starts off with the band walking up to a department store elevator, and an attractive woman (Brandi Brandt) says ``2nd floor... hardware, children's wear, lady's lingerie. Oh, good morning Mr. Tyler, going down? ''Steven Tyler enters the elevator and the song starts.

paragraph_text: The Eritrean Air Force (ERAF) is the official aerial warfare service branch of the Eritrean Defence Forces and is one of the three official uniformed military branches of the State of Eritrea.

paragraph_text: Vernon George Wells (born 31 December 1945) is an Australian actor. He began appearing on Australian television shows in the mid-1970s, such as Homicide and Matlock Police and All The Rivers Run. He is best known to international audiences for his role of Wez in the 1981 science fiction action film Mad Max 2: The Road Warrior and Bennett in the military action film Commando.

paragraph_text: The Navy first authorized a khaki uniform in 1913 as a practical garment for early naval aviators; they were given permission to wear Marine Corps khaki uniforms with naval insignia, when flying or working on aircraft. Khakis were authorized aboard submarines in 1931 and as a working uniform on all ships ten years later.

Question: When did the military branch Vernon Erskine-Crum served in start wearing khaki?
Answer: early 1900s