| [...], [....] | One or two words missing and not conjecturable. |
| [...], [....] | More than two words missing and not conjecturable; subjoined footnote estimates amount of missing matter. |
| [ ] | Number or part of a number missing or illegible. Amount of blank space inside brackets approximates the number of missing or illegible digits. |
| [roman] | Conjectural reading for missing or illegible matter. A question mark is inserted before the closing bracket if the conjectural reading is seriously doubtful. |
| <italic> | Matter canceled in the manuscript but restored in our text. |
| [italic] | Matter editorially inserted. |
| ||roman|| | Matter editorially decoded. |
| First Generation | |
|---|---|
| JA | John Adams (1735–1826) |
| AA | Abigail Smith (1744–1818), m. JA 1764 |
| {p. R47} | |
| Second Generation | |
| JQA | John Quincy Adams (1767–1848), son of JA and AA |
| LCA | Louisa Catherine Johnson (1775–1852), m. JQA 1797 |
| CA | Charles Adams (1770–1800), son of JA and AA |
| Mrs. CA | Sarah Smith (1769–1828), sister of WSS, m. CA 1795 |
| TBA | Thomas Boylston Adams (1772–1832), son of JA and AA |
| Mrs. TBA | Ann Harrod (1774?–1845), m. TBA 1805 |
| AA2 | Abigail Adams (1765–1813), daughter of JA and AA, m. WSS 1786 |
| WSS | William Stephens Smith (1755–1816), brother of Mrs. CA |
| Third Generation | |
| GWA | George Washington Adams (1801–1829), son of JQA and LCA |
| JA2 | John Adams (1803–1834), son of JQA and LCA |
| Mrs. JA2 | Mary Catherine Hellen (1806?–1870), m. JA2 1828 |
| CFA | Charles Francis Adams (1807–1886), son of JQA and LCA |
| ABA | Abigail Brown Brooks (1808–1889), m. CFA 1829 |
| ECA | Elizabeth Coombs Adams (1808–1903), daughter of TBA and Mrs. TBA |
| Fourth Generation | |
| JQA2 | John Quincy Adams (1833–1894), son of CFA and ABA |
| CFA2 | Charles Francis Adams (1835–1915), son of CFA and ABA |
| HA | Henry Adams (1838–1918), son of CFA and ABA |
| MHA | Marian Hooper (1842–1885), m. HA 1872 |
| BA | Brooks Adams (1848–1927), son of CFA and ABA |
| LCA2 | Louisa Catherine Adams (1831–1870), daughter of CFA and ABA, m. Charles Kuhn 1854 |
| MA | Mary Adams (1845–1928), daughter of CFA and ABA, m. Henry Parker Quincy 1877 |
| Fifth Generation | |
| CFA3 | Charles Francis Adams (1866–1954), son of JQA2 |
| HA2 | Henry Adams (1875–1951), son of CFA2 |
| D | Diary (Used only to designate a diary written by a member of the Adams family and always in combination with the short form of the writer's name and a serial number, as follows: D/JA/23, i.e. the twenty-third fascicle or volume of John Adams' manuscript Diary.) |
| Dft | draft |
| Dupl | duplicate |
| FC | file copy (Ordinarily a copy of a letter retained by a correspondent other than an Adams, for example Jefferson's press copies and polygraph copies, since all three of the Adams statesmen {p. R48} systematically entered copies of their outgoing letters in letterbooks.) |
| Lb | Letterbook (Used only to designate Adams letterbooks and always in combination with the short form of the writer's name and a serial number, as follows: Lb/JQA/29, i.e. the twenty-ninth volume of John Quincy Adams' Letterbooks.) |
| LbC | letterbook copy (Letterbook copies are normally unsigned, but any such copy is assumed to be in the hand of the person responsible for the text unless it is otherwise described.) |
| M | Miscellany (Used only to designate materials in the section of the Adams Papers known as the “Miscellany” and always in combination with the short form of the writer's name and a serial number, as follows: M/CFA/32, i.e. the thirty-second volume of the Charles Francis Adams Miscellany—a ledger volume mainly containing transcripts made by CFA in 1833 of selections from the family papers.) |
| MS, MSS | manuscript, manuscripts |
| RC | recipient's copy (A recipient's copy is assumed to be in the hand of the signer unless it is otherwise described.) |
| Tr | transcript (A copy, handwritten or typewritten, made substantially later than the original or than other copies—such as duplicates, file copies, letterbook copies—that were made contemporaneously.) |
| Tripl | triplicate |
| CSmH | Henry E. Huntington Library and Art Gallery |
| DLC | Library of Congress |
| DNA | The National Archives |
| ICHi | Chicago Historical Society |
| M-Ar | Massachusetts Archives |
| MB | Boston Public Library |
| MBAt | Boston Athenaeum |
| MBCo | Countway Library of Medicine (Harvard – Boston Medical Libraries) |
| MH | Harvard College Library |
| MH-Ar | Harvard University Archives |
| MHi | Massachusetts Historical Society |
| MQA | Adams National Historic Site, Quincy, Massachusetts |
| MWA | American Antiquarian Society |
| MeHi | Maine Historical Society |
| MiU-C | William L. Clements Library, University of Michigan |
| NHi | New-York Historical Society |
| NN | New York Public Library |
| NhD | Dartmouth College Library |
| NjMoW | Washington Headquarters Library, Morristown National Historic Park, New Jersey |
| PHarH | Pennsylvania Historical and Museum Commission, Harrisburg |
| PHi | Historical Society of Pennsylvania |
| PPAmP | American Philosophical Society |