Logbooks at the NA for the vessels (with dates) are as follows:
Lexington - January 23, 1863 - July 2, 1865.
Tyler - April 24, 1862 - June 26, 1865.
Cairo - none shown.
Baron De Kalb - none shown (but I believe that there was another name for this vessel, though I cannot recall what, at the moment).
Pittsburg - April 12, 1863 - July 22, 1865.
Carondelet - May 26, 1862 - June 20, 1865.

Hope this helps, somewhat.