In this census, his brother Charlie is living with John's familya: "United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MHGV-588 : accessed 2 June 2016), John B Long, Driskill, Livingston, Kentucky, United States; citing sheet 1A, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,820,587.
John B Long Head M 30 Kentucky
Cordie A Long Wife F 37 Kentucky
Joe D Long Son M 9 Kentucky
Charlie W Long Son M 7 Kentucky
Philip B Long Son M 3 Kentucky
Cecil Lee Long Son M 0 Kentucky
Zola M Long Stepdau F 17 Kentucky
Charlie L Long Brother M 22 Kentucky
Which makes me think this may be John, Charlie and family:
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M9H6-PHL : accessed 2 June 2016), Charlie Long in household of Gillie Long, Magisterial District 2, Driskill Smithland town, Livingston, Kentucky, United States; citing sheet 20A, family 375, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,240,539.
Gillie Long Head M 39 Kentucky
Almira J Long Wife F 35 Kentucky
Decola J Long Son M 15 Kentucky
Maggie E Long Dau F 12 Kentucky
John B Long Son M 10 Kentucky
Rosa L Long Dau F 9 Kentucky
Almira J Long Dau F 5 Kentucky
Charlie Long Son M 3 Kentucky
Thomas E Long Son M 0 Kentucky
Harry Walton Nephew M 9 Kentucky
Gillie W, widowed by 1910: United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M26W-QXN : accessed 2 June 2016), Gillie W Long, District 2, Livingston, Kentucky, United States; citing enumeration district (ED) ED 101, sheet 12A, NARA microfilm publication T624 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,374,504.
!910 Gillie W. living with his mother Mary Long b. KY 1835: "United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MHGK-M8N : accessed 2 June 2016), Gillie Long, Driskill, Livingston, Kentucky, United States; citing sheet 6A, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,820,587.
Gillie W Death Record: "Kentucky, Vital Record Indexes, 1911-1999," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKCM-1VG8 : accessed 2 June 2016), Gilley W Long, 04 Jun 1930; citing Death, Livingston, Kentucky, United States, Kentucky Department for Libraries and Archives, Frankfort.
? Possible Gillie w. parents 1880: "United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MCCR-CHX : accessed 2 June 2016), Gilley Long in household of John Ed Long, Robards Station, Henderson, Kentucky, United States; citing enumeration district ED 51, sheet 594D, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0419; FHL microfilm 1,254,419.