John Peck sent the following letter to McKim on October 30, 1860.
“Pittsburgh Oct 30th 1860
Mr James M McKim
I have just this morning succeeded in finding this family of Martin(?) of whome you wrote this story is strictly correct I [illegible] and with his Wife He however has returned however but keeps himself out of the way he is at present [illegible] gave his family street change not to tell his whereabout he is still in [illegible] of apprehension.
Send this letter by a Lady who has been a slave in Missouri and is now endeavoring to collect a sum of money to purchase her little Boys freedom Hers is a genuine case do what you can for her she is worthy of all that may be done for her
Yours as ever
J M Peck
I’m sorry it was not my power to attend the annual meeting of the anti-slavery society it would have given me [illegible] pleasure to have done so”
 John M Peck to James Miller McKim, October 30, 1860, Samuel J. May Anti-Slavery Manuscript Collection, no. 4601, Box 21, Folder 24, Division of Rare and Manuscript Collections, Cornell University Library. [PDF]