Sosthan Pitre was born in 1876 in Calcasieu, Louisiana, United States. He was the son of Francois Pitre and Elizabeth (White) Pitre. In 1880, he lived in Hickory Flat, Calcasieu, Louisiana, United States. He passed away on November 30, 1903 in Kinder, Allen, Louisiana, United States. He was buried in Green Oak Cemetery in Kinder, Allen, Louisiana, United States.
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MD6V-DD1 : 15 August 2017), Francois Pitre, Hickory Flat, Calcasieu, Louisiana, United States; citing enumeration district ED 6, sheet 450D, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0449; FHL microfilm 1,254,449.