Collected Works of Abraham Lincoln. Volume 2.
Lincoln, Abraham, 1809-1865.
To Isaac Onstott 
Dear Isaac: Springfield, Oct. 14. 1849
I have but a moment to say your letter is received; and that when a Petition comes to me in relation to your Post-Master it shall be attended to at once. Give my respects to your father and mother, and believe me ever: Your friend A. LINCOLN