Collected Works of Abraham Lincoln. Volume 3.
Lincoln, Abraham, 1809-1865.
To Peter H. Watson 
P. H. Watson, Esq., [May 14, 1859]
My dear Sir: Reaching here the 14th, I found yours of the 7th. I have not heard from Haines for some time, and until I do hear from him I can say nothing definite about taking evidence. When I hear from him I will write you. Yours truly, A. LINCOLN.