Statistics for occurrence #1 of “Gaines' Mill” in chapter 1 of Comte de Paris, History of the Civil War in America. Vol. 2.:

...e centre, consisting of Sumner's corps, was encamped in the neighborhood of the railroad-bridge; the two corps commanded by Porter and Franklin, forming the right wing, were posted in the vicinity of Gaines' Mill and Mechanicsville. The army had occupied these positions without any difficulty, having only met some weak detachments of the enemy at Seven Pines and Mechanicsville, which were easily repulsed. ...
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