It might be the deaths indicated below from familysearch.org. Birth years vary a little on records but seems location might be correct. No death cert images online. You might want to see if you can obtain the originals for more information. Good Luck.
Alabama, Deaths, 1908-1974
Citing this Record "Alabama, Deaths, 1908-1974," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/JKQM-YBS
Name: William C. Walden
Death 11 May 1918 Adger, Jefferson, Alabama
Male Age 82y 3m 8d
Birth (Est): 1836
Spouse Mary E Walden
Father Richard Walden
Mother Lucenda House
GS Film number: 1908199
Reference ID: cn 99
Citing this Record "Alabama, Deaths, 1908-1974," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/JKQM-YYP
Name: Mary Elizibeth Walden
Death 16 May 1918 Adger, Jefferson, Alabama
Female Age 79y 2m Birth (Est) 1839
Spouse's Name: William C. Walden
Father Don'T Know
Mother Don'T Know
GS Film number: 1908199
Reference ID: cn 96
U S Census, 1900 ED 87 Precinct 4, 35, Jefferson, AL
Citing this Record "United States Census, 1900," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M98R-6LR
Head William Waldon M 63 Mar 1837 AL/AL/AL
Wife Mary E Waldon F 57 Feb 1843 AL/GER/AL
Son John A Waldon M 16 Sept 1884 AL
U S Census, 1910 Precinct 35, Jefferson, Alabama
Citing this Record "United States Census, 1910," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MKQT-TVN
SELF William C Walden M 73y AL
WIFE Mary E Walden F 69y AL
U S Census, 1880 Favors, Tuscaloosa, Alabama
Citing this Record "United States Census, 1880," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M4VJ-79Q
Self William Waldon M 42 AL/AL/AL
Wife Mary Waldon F 38 AL/GER/AL
Son James Waldon M 16 AL
Dau Nancy Waldon F 15 AL
Dau Pernecy Waldon F 12 AL
Son Elijah Waldon M 6 AL
Dau Francis Waldon F 2 AL
