Herron spent parts of five seasons with Fargo-Moorhead. He was 35.
To complete an earlier deal for Manny Boscan, the RedHawks sent Dylan Kelly and Correlle Prime to Milwaukee.
The Monarchs finished off a perfect postseason with an 8-1 win on Monday night in KC.
John Silviano and Sam Dexter each hit home runs in a 7-5 RedHawks loss to Kansas City in Game 2.
Game 2 of the best-of-five AA Finals is set for Saturday night at 6:30 p.m. in Fargo.
John Silviano's 7th inning grand slam was the difference as the RedHawks earned their first playoff series win as members of the American Association.
The winner-take-all Game 5 is set for Thursday night at 6:30 p.m. in Fargo.
Silviano's clutch hit puts the RedHawks one win away from a spot in the AA Finals.
Game 3 of the NDCS will now be played on Tuesday, Sept. 14 at 6:30 p.m. in Fargo.
Chicago tied the best-of-five NDCS at one game apiece with a win on Saturday night at Impact Field.
The RedHawks crushed four home runs to take a 1-0 lead in the North Division Championship Series against Chicago.
Tomshaw allowed only three hits and capitalized on a five-run cushion to seal the win for Fargo-Moorhead.
The RedHawks now face the Millwaukee Milkmen in the North Division Wild Card Game
The game will not be made up after being cancelled due to rain.
Jordan George hit Fargo-Moorhead's third grand slam of 2021 in a 10-5 win.
