The diaries that Thomas Butler Gunn maintained in the period between 1849 and 1863 contain a wealth of information about the New York literary scene in general and the Pfaff's bohemians in particular. The anecdotes that Gunn records come from first-hand observation as well as second- or even third-hand accounts, so readers should exercise caution in taking everything that he says at face value. Note: The Missouri Historical Society has assigned numbers to the volumes that do not always match up with the handwritten numbers that Gunn himself notes on the first pages of a given volume of the diary. Below is a list that matches the Missouri numbers with Gunn’s numbers and their corresponding date ranges as follows: < !--COMMENT OUT LIST Missouri(Gunn), Date Range. 1(1), July 17, 1849 – October 8, 1850; 2(3), October 9, 1850 – September 30, 1851; 3(4), [October 1851] – December 30, 1851; 4(5), January 1852 – July 1852; 5(6), August 1852 – July 3, 1853; 6(7), July 4, 1853 – December 31, 1853; 7(9), February 1855 – April 12, 1856; 8(10), April 12, 1856 – October 1857 [Sept.]; 9(11), October 1, 1857 – November 5, 1858; 10(12), November 12, 1858 – May 31, 1859; 11(13), June 1, 1859 – [December 1859]; 12(14), January 1, 1860 – [May 1960]; 13(15), June 1, 1860 – September 22, 1860; 14(16), September 23, 1860 – December 31, 1860; 15(17), January 1, 1861 – February 28, 1861; 16(18), March 1, 1861 – June 14, 1861; 17(19), June 15, 1861 – October 10, 1861; 18(20), October 11, 1861 – February 28, 1862; 19(21), March 1, 1862 – May 22, 1862; 20(22), May 23, 1862 – September 13, 1862; 21(23), October 1, 1862 – February 12, 1863; 22(unnumbered), January 1863 – April 7, 1863.-->
| Missouri | Gunn | Date Range |
|---|---|---|
| 1 | 1 | July 17, 1849 – October 8, 1850 |
| 2 | 3 | October 9, 1850 – September 30, 1851 |
| 3 | 4 | [October 1851] – December 30, 1851 |
| 4 | 5 | January 1852 – July 1852 |
| 5 | 6 | August 1852 – July 3, 1853 |
| 6 | 7 | July 4, 1853 – December 31, 1853 |
| 7 | 9 | February 1855 – April 12, 1856 |
| 8 | 10 | April 12, 1856 – October 1857 [Sept.] |
| 9 | 11 | October 1, 1857 – November 5, 1858 |
| 10 | 12 | November 12, 1858 – May 31, 1859 |
| 11 | 13 | June 1, 1859 – [December 1859] |
| 12 | 14 | January 1, 1860 – [May 1960] |
| 13 | 15 | June 1, 1860 – September 22, 1860 |
| 14 | 16 | September 23, 1860 – December 31, 1860 |
| 15 | 17 | January 1, 1861 – February 28, 1861 |
| 16 | 18 | March 1, 1861 – June 14, 1861 |
| 17 | 19 | June 15, 1861 – October 10, 1861 |
| 18 | 20 | October 11, 1861 – February 28, 1862 |
| 19 | 21 | March 1, 1862 – May 22, 1862 |
| 20 | 22 | May 23, 1862 – September 13, 1862 |
| 21 | 23 | October 1, 1862 – February 12, 1863 |
| 22 | unnumbered | January 1863 – April 7, 1863. |