Source: Parke County Whig, 15 Nov 1850 p 4
A. HENDERSON - Mechanic's Institute, Covington, Indiana, Wholesale & Retain Dealer in rough and sawed marble spires, monuments, furniture tops, sills and caps for buildings, etc.
He also manufactures all articles in his line on the shortest notice, and in a style that has never yet failed to suit. For evidence, he refers to those who have favored him with a call. Covington, Nov 8, 1850