- Jul 11 Joseph Lanman, American naval officer (Union Navy), born in Norwich, Connecticut (d. 1874)
- Jul 11 William Robert Grove, Welsh physicist and inventor of the first fuel cell, born in Swansea, Wales (d. 1896)
- Jul 18 William Makepeace Thackeray, British novelist (Vanity Fair), born in Kolkata, India (d. 1863)
20-29
30-39
40-49
50-59
80-89
Over 90