Here's Willie in 1910.This index shows her as "Married", but the actual census image looks more like "Widowed".If this is the right person, that would put George DAVIS dying sometime between 1908-1910, and there should be a Tennessee death certificate available for him.
Looks like there is: DAVIS, George - died 1911, Giles County - Certificate 29483
(Pulaski is in Giles County.)
1910 United States Federal Census
Name: Willie L Richardson [* L Richardson] Age in 1910: 22 Birth Year: 1888 Birthplace: Tennessee Home in 1910: Civil District 6, Giles, Tennessee Race: White Gender: Female Relation to Head of House: Daughter Marital Status: Married Father's Name: John D Richardson Father's Birthplace: Tennessee Mother's Name: Mary C Richardson Mother's Birthplace: Tennessee Neighbors: View others on page Household Members: Name Age John D Richardson 52 Mary C Richardson 52 Willie L Richardson 22 Ed Richardson 21 Christana Richardson 17 John D Richardson 14 Bryan Davis 2/12 [2m] 
Ancestry.com. 1910 United States Federal Census [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2006. Original data: Thirteenth Census of the United States, 1910 (NARA microfilm publication T624, 1,178 rolls). Records of the Bureau of the Census, Record Group 29. National Archives, Washington, D.C. For details on the contents of the film numbers, visit the following NARA web page: NARA
Description: This database is an index to the head of households enumerated in the 1910 United States Federal Census, the Thirteenth Census of the United States. In addition, each indexed name is linked to actual images of the 1910 Federal Census. The information recorded in the census includes: name, relationship to head of family, age at last birthday, sex, color or race, whether single, married, widowed, or divorced, birthplace, birthplace of father and mother, and more.