Louis was the son of Louis Stengel and Catherine Kniphals (could be Knuphals). He was born in Davenport, Iowa, though some records indicate that he may have been born in Illinois. His father died when Louis was only 4 years old. His mother remarried Charles Wolff.
Louis married Jennie J. Jordan on February 4, 1886 in Davenport. Jennie was born in Iowa in 1863. They had three children: Louise born in 1886 and an older brother Louis Grant born in 1887 and Charles Dillion, known as Casey, born in 1890. All the children were born in Missouri.
Louis worked as a collection agent according to both the 1900 and the 1910 US Censuses.
By the 1920 Census, Louis was a manager at a sprinkler company in Kansas City. All three children were living at home.
Son Casey would go on to become an outfielder and later a manager in Major League Baseball.
Louis died in Kansas City Missouri in 1940. He is buried at the Forest Hill Cemetery in Kansas City.
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M3ZM-Y2W : accessed 6 June 2019), Louis E. Stingel, Precinct 6 Kansas City Ward 7, Jackson, Missouri, United States; citing enumeration district (ED) 63, sheet 1B, family 19, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,862.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M2YX-K5R : 29 October 2015), Louis E Stengel, Kansas Ward 10, Jackson, Missouri, United States; citing enumeration district (ED) ED 137, sheet 7A, NARA microfilm publication T624 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,374,800.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M8HG-D2C : accessed 6 June 2019), Louis E Stengel, Kansas City Ward 13, Jackson, Missouri, United States; citing ED 209, sheet 7A, line 49, family 186, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 929; FHL microfilm 1,820,929.
Find a Grave- https://www.findagrave.com/memorial/171146013
Geni.com - https://www.geni.com/people/Louis-Stengel/6000000002543097828