Note: TDC lists her age as 25yo (while various newspaper articles concerning her death list her as 20yo and 22yo). The 1900 census states she was born in Nov 1887 and this date has been used on the memorial.

Information and burial location per Tennessee Death Certificate
Cause of death: Gun shot wound (homicide)
Name: Lena Clevenger
Event Type: Death
Event Date: 28 Oct 1911
Event Place: Knox, Tennessee, United States
Event Place Note: 600 Asylum Av.
Gender: Female
Age: 25
Birthplace: Tennessee
Marital Status: Married
Ethnicity: American
Race: White
Birth Year (Estimated): 1886
Birthplace: Knox Co., Tenn.
Father's name: W. A. Mourfield
Father's birthplace: Tennessee
Mother's name: Lizzie Grooms
Mother's birthplace: Tennessee
Cemetery: New Gray Cemetery
TDC Informant: W. A. Mourfield (her father)

Citing this Record
"Tennessee Deaths and Burials, 1874-1955", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:F6RJ-MM3 : 27 January 2020), Lena Clevenger, 1911.

The October 27, 1911 edition of the Knoxville Sentinel included:
Dual Tragedy Charged to Soft Drink Resort
Husband Kills Wife Then Ends Own Life
Mrs. Perry Clevenger Had Appealed to Police to Purify His Place.
Perry Clevenger and his wife are dead as a result of what the police believe to have been a murder and suicide at 600 Asylum avenue, late Thursday afternoon...The difficulty which lead to the tragedy is said to have had its origin over the manner in which Perry Clevenger conducted a soft drink stand at 608 Asylum avenue, permitting the gathering of women there and selling whisky. Protests of the wife, made to police headquarters, resulted in a police raid on the soft drink stand and led to the arrest of Clevenger, and his brother...and two women about one hour preceeding the killing...