1918, September 12 - WWI Draft Registration Card
Wife's name was given as Sallie Garland
Address: Linville, Avery County, North Carolina - he worked for the railroad

1920 - Lineville Township, Avery County, North Carolina
GARLAND, John C. head m w 41 m NC NC NC laborer - working out
GARLAND, Sallie L. wife f w 34 m NC NC NC none
GARLAND, Bessie daughter f w 6 NC NC NC
GARLAND, Zac son m w 3 1/2 NC NC NC

1930 - Lineville Township, Avery County, North Carolina
GARLAND, John head 52 m33 TN NC NC Painter house
GARLAND, Sallie wife 44 m32 NC NC NC none
GARLAND, Zach son 13 NC TN NC
LYLE, Dolly 45 sister wd m22 NC NC NC retail shop

1900 – Unicoi County, Tennessee, taken on the 1st of June in 1900
DANEY, William C. head 42 TN TN TN
DANEY, Bertha C. daughter Feb 1890 10 TN TN TN
DANEY, Virtie A. Feb 1891 9 TN TN TN
DANEY, Evaline mother April 1838 62 TN TN TN
DANEY, Rhoda E. sister Oct 1863 36 single TN TN TN
DANEY, David S. brother Feb 1867 32 single TN TN TN

1910 - Erwin, Unicoi County, Tennessee – taken on the 22nd of April in 1910.
TONEY, Chris W. 51 head married twice TN TN TN
TONEY, Julia A. wife 26 married once no children TN NC NC
TONEY, Ella F. mother 73 wd TN TN TN
TONEY, Berth C. daughter single 20 TN TN TN
TONEY, Vertie A. daughter single 19 TN TN TN
TONEY, Rhoda E. sister 48 single TN TN TN
TONEY, Otta May granddaughter 11/12 TN TN TN

There is a Sallie Gardner who died on the 3rd of February in 1953 in Mitchell County, North Carolina. I'm not sure if that is the same woman.