| | Birth place | Death place | Father | Mother | Joined with |
|---|
| John Adair (1754-1824) | County Antrim, Northern Ireland, United Kingdom | | John Adair (1732-1827) | Eleanor Crawford (1734-1827) | Mary O'Donnell (1754-1790) + Elizabeth McKnight (1762-1845) |
| John Adair (1750-1782) | Pennsylvania, United States | Duncan Creek, Laurens County, South Carolina, United States | Joseph Adair (1711-1788) | Sarah Laferty (1715-1767) | Sarah Unknown Adair (c1750-1794) |
| John Adair (1810-1892) | County Monaghan, Ireland | 33 Dawson St., Strawberry Hills, New South Wales, Australia | William Adair (1795-1860) | Elizabeth Woods (1795-1860) | Sarah Bailey (1815-1893) |
| John Adair (1598-1675) | Genoch House, Old Luce, Wigtownshire, Scotland, United Kingdom | Scotland, United Kingdom | William Adair (1565-1626) | Rosina Reilly McClellan (1565-1626) | Helen Cathcart (1590-1640) |
| John Adair (c1685-) | County Antrim, Ireland | | Alexander Adair (1652-1715) | Margaret Agnew (1657-1715) | |
| John Adair (1808-1888) | Harrodsburg, Mercer County, Kentucky, United States | Astoria, Clatsop County, Oregon, United States | John Adair (1757-1840) | Catherine Palmer (1768-1854) | Mary Ann Cockburn Dickerson (1816-1893) |
| John Adair (1839-1915) | Louisville, Jefferson County, Kentucky, United States | Astoria, Clatsop County, Oregon, United States | John Adair (1808-1888) | Mary Ann Cockburn Dickerson (1816-1893) | Bethania Angelina Owens (1840-1926) |
| John Adair (1891-1961) | Portland, Multnomah County, Oregon, United States | | John Adair (1839-1915) | Bethania Angelina Owens (1840-1926) | |
| John Adair (1730-) | Kilwinning, North Ayrshire, Scotland, United Kingdom | | | | Elizabeth Stewart (1825-) |
| John Adair (1827-1864) | Glasgow, Lanarkshire, Scotland, United Kingdom | Bruce County, Ontario, Canada | James Adair (1778-) | Elizabeth Skidmore (1792-1864) | Agnes Frame (1834-1908) |
| John Adair (1757-1840) | Chester County, South Carolina, United States | Mercer County, Kentucky, United States | William Adair (c1718-1812) | Mary Moore (1729-1797) | Catherine Palmer (1768-1854) |
| John Adair (1754-1815) | Chickasaw Nation | Oconee County, South Carolina | James Adair (1714-1796) | Eleanor Adair (1726-1803) | Nancy Ga-Ho-Ga Lightfoot (1760-1789) + Jane Kilgore (1773-1815) |
| John Adair (1732-1827) | Drumbo, County Antrim, Northern Ireland, United Kingdom | Knoxville, Knox County, Tennessee, United States | Matthew Adair (1700-1774) | Agnes Livingstone (1704-) | Eleanor Crawford (1734-1827) |
| John Alexander Adair (1852-1935) | Winterset, Madison County, Iowa, United States | Emmett, Gem County, Idaho, United States | Harrison Adair (1830-1854) | Mary Jane Rush (1833-1906) | Drusilla Burger (1853-1913) |
| John Alexander Adair (1756-1812) | South Carolina, United States | Morgan County, Georgia, United States | Joseph Adair (1735-1812) | Sarah Dillard (1736-) | Jane Fisher Jones (1766-1852) |
| John Fisher Adair (1785-1856) | South Carolina, United States | Morgan County, Georgia, United States | John Adair (1754-1824) | Mary O'Donnell (1754-1790) | Mary Radval Slaven (1790-1835) + Bethier Plymill (1800-1875) |
| John George Adair (1850-1927) | County Monaghan, Ireland | St. Lawrence, Isaac Region, Queensland, Australia | John Adair (1810-1892) | Sarah Bailey (1815-1893) | Elizabeth Sarah Elliott (1852-1928) |
| John Gray Adair (1873-1955) | Massachusetts, United States | | John Adair (1838-) | Agnes Reid (1835-1904) | Clara Esther Fales (1876-1925) |
| John Gregory Adair (1861-1945) | Crockett, Houston County, Texas, United States | Hunt County, Texas, United States | Hosea George Adair (1836-1907) | Cynthia Carmel Conner (1843-1870) | Nancy Lucretia Warren (1857-1933) |
| John Milton Adair (1833-1899) | Pickens County, Alabama | Barclay, Lincoln County, Nevada | Samuel Jefferson Adair (1806-1889) | Jemima Catherina Mangum (1809-1848) | Eliza Jane Richey (1837-1908) |
| John Thompson Adair (1812-1891) | Cherokee County, Georgia, United States | Cherokee County, Georia, United States | Walter Washington Adair (1783-1835) | Rachel Thompson (1786-1876) | Francis Thompson (1815-1838) + Penelope Starr Mayfield (1824-1902) + Mary Ann Hancock (1834-1912) |
| John Ticanooly Adair (1833-1875) | Georgia, United States | United States | George Washington Adair (1806-1862) | Martha Hammock Martin (1815-1875) | Nancy Martha Thompson (1838-1919) |
| John Washington Adair (1874-1957) | Kanab, Kane County, Utah, United States | Holbrook, Navajo County, Arizona, United States | George Washington Adair (1837-1909) | Emily Prescinda Tyler (1847-1917) | Cynthia Jane Penrod (1878-1951) |
| James Wesley Adair (1841-1865) | Itawamba County, Mississippi | | Thomas Jefferson Adair (1814-1895) | Frances Rogers (1818-1847) | Elizabeth Thornton (1841-) |
| John Wesley Adair (1820-1903) | Greene County, Alabama | Nutrioso, Apache County, Arizona | Thomas Adair (1774-1858) | Rebecca Brown (1776-1846) | Rebecca Frances Mangum (1814-1890) + Harriett Cordelia Williams (1829-1907) |
| John William Adair (1945-1967) | Tempe, Maricopa County, Arizona, United States | Panama Canal Zone, Panama | Dallas Tyler Adair (1910-1979) | Laura Carmichael (1925-2000) | |
