Find A Grave Memorial# 121489763, William McKinney Dillard, East View Cemetery, Westminster, Oconee County, South Carolina, USA.
"United States Census, 1870," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MC3L-421 : accessed 05 Dec 2014), William Dillard in household of Barnet Dillard, Georgia, United States; citing p. 24, family 177, NARA microfilm publication M593, National Archives and Records Administration, Washington D.C.; FHL microfilm 000545670.
"United States Census, 1880," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M8GP-YLJ : accessed 05 Dec 2014), William M Dillard in household of John B Dillard, Tennessee Valley, Rabun, Georgia, United States, 171; citing sheet 47A, film number 0162, NARA microfilm publication T9, National Archives and Records Administration, Washington D.C.; FHL microfilm 1254162.
It may be possible to confirm family relationships with William by comparing test results with other carriers of his ancestors' Y-chromosome or mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share DNA with William:
When pasting images of census originals it is important to take care that the family doesn't bleed over onto the next page of the census. When that happens, a different image is necessary for the affected profiles such as on the 1870 census in this family