- Jul 9 Jules Oppert, French-German Assyriologist (decodes characters), born in Hamburg, Germany (d. 1905)
- Jul 11 Edward Henry Hobson, American merchant, banker, politician, and Brigadier General (Union Army), born in Greensburg, Kentucky (d. 1901)
- Jul 23 Richard Hol, Dutch composer, organist and conductor, born in Amsterdam, Netherlands (d. 1904)
- Jul 28 William Duncan Smith, American Brigadier General (Confederate Army), born in Augusta, Georgia (d. 1862)
- Jul 30 Chaim Aronson, Lithuanian inventor and academic, born in Seredžius, Lithuania (d. 1893)
- Jul 31 Thomas Hart Taylor, American brigade commander in the Confederate Army, born in Frankfurt, Kentucky (d. 1901)
20-29
30-39
40-49
50-59
80-89
Over 90