- Mar 1 Alexey Nikolayevich Verstovsky, composer
- Mar 7 Frantisek L. Celakovsky, Czech poet (national anthem, folk song)
- Mar 8 Simon Cameron, U.S. Senator and Secretary of War (Union), born in Maytown, Pennsylvania (d. 1889)
Anna Atkins (1799-1871)
Mar 16 English botanist, photographer and the 1st person to publish a book illustrated with photographic images, born in Tonbridge, England
- Mar 20 Karl August Nicander, Swedish poet (d. 1839)
- Mar 22 Friedrich Wilhelm Argelander, German astronomer, cataloguer of 324,188 stars, born in Memel, Kingdom of Prussia, (d. 1875)
- Mar 22 Joseph Saxton, American inventor, watchmaker, and photographer (1st daguerrotype in US), born in Huntington, Pennsylvania (d. 1873)
- Mar 28 Karl Adolph von Basedow, German artist (Ziekte van Basedow), born in Dessau, Germany (d. 1854)
Edward Smith-Stanley (1799-1869)
Mar 29 14th Earl of Derby, British Prime Minister (Conservative: 1852, 1858-59, 1866-68), born in Knowsley, England
