EXCLUSIVE: On the heels of the blockbuster success of Hatfields & McCoys, History has teamed with two key auspices behind the miniseries — executive producer Leslie Greif and co-writer Ted Mann — for another six-hour mini set during America’s turbulent 19th century.

History is developing Texas Rising, a miniseries about the formation and rise of the Texas Rangers, the oldest law enforcement organization in North America. It will chronicle the force’s humble beginnings — its creation was triggered by a call-to-arms penned by Stephen F. Austin in 1823 — as well as its role during Texas’ secession from the U.S. during the Civil War. Mann will write the mini, with Greif executive producing.

Mann, repped by APA and attorney Tom Hoberman, recently joined the second season of Starz’ period drama Magic City after serving as co-executive producer on the pay cable network’s first drama series Crash and the upcoming Da Vinci’s Demons. His credits also include HBO’s dark Western Deadwood and ABC’s NYPD Blue.

For Greif, turning America’s most famous family feud into a miniseries was a 30-year journey that had a happy ending as History’s three-part Hatfields & McCoys starring Kevin Costner and Bill Paxton broke basic cable ratings records, culminating with 14.3 million viewers for its conclusion. Hatfields & McCoys went on to earn 16 Emmy nominations, including best movie/miniseries and best writing which were shared by Greif and Mann, respectively. It won five, including best leading actor (Kevin Costner) and supporting actor (Tom Berenger).