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==Background==

==Background==

Clarke was born in Marietta in Washington County in southeastern [[Ohio]], but by the age of five, he was living in [[Beaumont]], [[Texas]], where his father, Charles Kelly "Cal" Clarke (1865-1927), a Marietta native who had begun employment as a [[petroleum]] pipeline worker for [[Standard Oil]], was a wildcatter at Spindletop. Soon, the senior Clarke moved his wife, the former Maude Steele, and son, their only child, to Shreveport. There Cal Clarke became the president of the Standard Oil interests in Louisiana and subsequently relocated to the capital city of [[Baton Rouge]]. The senior Clarke died of a six-day illness at the age of sixty-one, his body found on the floor of his bathroom while his wife was away in [[New Orleans]] and his son in Shreveport.<ref name=calclarke>{{cite news|publisher=''The Monroe News-Star''|title=LA Standard Oil President Dies: C. K. Clarke Found Dead at Capital|date=March 21, 1927}}</ref> Clem Clarke himself became a petroleum land man, geologist, and investor.​

Clarke was born in Marietta in Washington County in southeastern [[Ohio]], but by the age of five, he was living in [[Beaumont]], [[Texas]], where his father, Charles Kelly "Cal" Clarke (1865-1927), a Marietta native who had begun employment as a [[petroleum]] pipeline worker for [[Standard Oil]], was a wildcatter at Spindletop. Soon, the senior Clarke moved his wife, the former Maude Steele, and son, their only child, to Shreveport. There Cal Clarke became the president of the Standard Oil interests in Louisiana and subsequently relocated to the capital city of [[Baton Rouge]]. The senior Clarke died of a six-day illness at the age of sixty-one, his body found on the floor of his bathroom while his wife was away in [[New Orleans]] and his son in Shreveport.<ref name=calclarke>{{cite news|publisher=''[[Monroe News Star]]''|title=LA Standard Oil President Dies: C. K. Clarke Found Dead at Capital|date=March 21, 1927}}</ref> Clem Clarke himself became a petroleum land man, geologist, and investor.​

Clarke studied mechanical engineering for two years at [[Cornell University]] in Ithaca, [[New York]]. He entered the [[United States Navy]] in 1919, after the signing of the [[World War I]] [[armistice]].<ref name=interview>{{cite web|url=http://www.worldcat.org/title/reminiscences-of-clem-s-clarke-oral-history-1951/oclc/122308295|title=Reminiscences of Clem S. Clarke: Oral history, 1951|author=Historian Allan Nevins and Frank Ernest Hill|publisher=[[Columbia University]]|location=[[New York City]]|accessdate=February 10, 2015}}</ref> He attained the rank of ensign.<ref>{{cite book|url=https://books.google.com/?id=OswcAQAAIAAJ&pg=PA579&lpg=PA579&dq=Clem+S.+Clarke#v=onepage&q=Clem%20S.%20Clarke&f=false|title=Register of Commissioned and Warrant Officers of the United States Navy|page=303|publisher=U. S. Government Printing Office|location=[[Washington, D.C.]]|accessdate=February 11, 2015|year=1918}}</ref>​

Clarke studied mechanical engineering for two years at [[Cornell University]] in Ithaca, [[New York]]. He entered the [[United States Navy]] in 1919, after the signing of the [[World War I]] [[armistice]].<ref name=interview>{{cite web|url=http://www.worldcat.org/title/reminiscences-of-clem-s-clarke-oral-history-1951/oclc/122308295|title=Reminiscences of Clem S. Clarke: Oral history, 1951|author=Historian Allan Nevins and Frank Ernest Hill|publisher=[[Columbia University]]|location=[[New York City]]|accessdate=February 10, 2015}}</ref> He attained the rank of ensign.<ref>{{cite book|url=https://books.google.com/?id=OswcAQAAIAAJ&pg=PA579&lpg=PA579&dq=Clem+S.+Clarke#v=onepage&q=Clem%20S.%20Clarke&f=false|title=Register of Commissioned and Warrant Officers of the United States Navy|page=303|publisher=U. S. Government Printing Office|location=[[Washington, D.C.]]|accessdate=February 11, 2015|year=1918}}</ref>​