The papers are part of the Hamilton collection, Keppel's daughter having married Sir Frederick Tower Hamilton (q.v.). They were presented in 1957 and 1958 by Miss Jean Hamilton and consist of logs, 1824 to 1825, 1830 to 1831, 1834 to 1835, 1842 to 1845, 1847 to 1851, 1853 to 1857, 1860 to 1861; private journals, 1867 to 1869; annual diaries, 1834 to 1838, 1842 to 1844, 1855 to 1857, 1867 to 1869; private letterbooks, 1867 to 1869, 1874 to 1875 and loose papers. These are mainly letters received, 1841 to 1900, the bulk of which date from 1870. Of the two groups of Keppel's letters to his family, one covers the Crimean War and the other his tour of the Far East, 1897 to 1900.