Sir May 12, 1853.
I hope the subject-matter of this letter will appear a sufficient apology to you for the liberty I, a total stranger, take in addressing you. The persons here, holding two lots under a conveyance made by you, as the attorney of Daniel M Baily,  now nearly twenty-two years ago, are in great danger of losing the lots; and very much---perhaps all---is to depend on the testimony you give as to whether you did, or did not account to Baily for the proceeds received by you on the sale of the lots. I therefore, as one of their counsel, beg of you to fully refresh your recollection, by every means in your power, before the time you may be called on to testify. If persons should come about you and show a disposition to pump you on this subject; it may be no more than prudent to remember that it may be possible they design to misrepresent you, and to embarrass the real testimony you may ultimately give. It may be six months or a year before you are called on to testify.
Respectfully A. LINCOLN