Benning advanced on the right of Robertson on the afternoon of the 19th, which put them slightly north of the markers for Estep, though that part of the battle was totally disorganized at times; Eli Lilly (yes, the same man) had 10 cannon in the battle and lost one of them, a mountain howizer which was directly in line with Benning's charge that afternoon. Lilly atrributed the loss to “the miserable, shoulderstrapped poltroons who allowed the support to run away from the pieces in the hour of danger.”
The next morning, Benning took at least one gun from Church's Michigan battery by the burning Poe house:

"Our men were very fortunate indeed, situated as they were, completely surrounded by the Rebs & had they of had their bayonets fixed on their guns, I have no doubt but nearly every man would of fallen" - Yankee saddler, Harry Bartlett, Church’s battery, Connell’s brigade (Genco, 118)

The single largest capture of Union cannon here happened 1,000 yards east of Church's 1st position, but it is claimed and contested by so many units that debates have been written over it.

Andrew, do you wish me to forward your 20th report to the CCNMP library files? Joe