...ck Head, and built works in the afternoon. A part of the regiment, in charge of Capt. Hobart H. Hatch, made a reconnaissance during the day, and found the enemy strongly posted on the south bank of Peach Tree Creek . July 19, at 4 p. m. the regiment relieved the Fifteenth Missouri on picket. At 7 p. m. picket-line was withdrawn and regiment rejoined the brigade, which had advanced about one mile. At 11 p. m. c...