Jacksonville struggled in the Red Zone in the second half, twice fumbling the football inside of the 10-yard line when it initially appeared that the Tribe were on the way to scoring touchdowns.
The Corsicana defense rose to the challenge of keeping McCown, who accounted for 613 total yards against Lindale last week, in check.
McCown went 21-39-1 through the air for 200 yards and rushed for 45 yards on 11 carries.
Both teams' senior place kickers had nice efforts.
The Tigers' Ryan Condley was 6-of-7 on his PAT attempts, while the Tribe's Travis made good on four extra point tries in addition to drilling a 37-yard field goal in the first period.
Claude Franklin led Jacksonville in receiving with six catches for 53 yards, followed by Tony Lane with five grabs covering 36 yards.
Cash Cleaver reeled in three passes for 57 yards.
The Tigers' Bobby Lopez collected an interception late in the first half which led to Bell's fourth touchdown of the night.
Jacksonville's Datavion Thacker, one of several sophomores on the Indians' varsity roster, was injured in the second quarter defending on a play and was taken off of the field on a stretcher as a precautionary measure after receiving a stinger.
Corsicana 14 20 7 7 — 48
Jacksonville 3 14 7 7 — 31
C-Devontay Bell 36 run (Ryan Condley kick), 9:32
C-Bell 18 run (Condley kick), 4:36
J-Ryan Travis 37 FG, 1:21
J-Carter McCown 4 run (Travis kick), 10:00
C-Donovan Fields 31 run, 7:21
J-Stacy Cummings 3 run (Travis kick), 6:22
C-Bell 86 run (kick failed), 1:22
C-Bell 19 run (Condley kick), :19
J-Braylon Parish 9 run (Travis kick), 10:46
C-Bell 78 run (Condley kick), 9:28
C-Fields 22 run (Condley kick), 10:48
J-Tony Lane 3 pass from McCown (Travis kick), :41