What a lot of work you have done!
When it comes to sources, linking direct to another site is probably not the best idea (especially if they change the link, or it is a pay for view site)
When you find a source, for instance the 1880 census. There is a part that says cite this record. You copy and return to your profile and apply it
This is the one for that census
"United States Census, 1880," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:MCF9-1ZW : 11 September 2017), Wm J Faw in household of John W Faw, Reddies River, Wilkes, North Carolina, United States; citing enumeration district ED 221, sheet 198A, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0987; FHL microfilm 1,254,987.
Keep doing such good work and your family will be large and filled with interesting info