Complex sentence: Barbry was succeeded as chairman by Marshall Pierite, formerly vice chairman of the tribe, from August 2013 through April 2014; the current chairman is Joey P. Barbry, to serve through April 2018.
Split into simpler sentences: Barbry was succeeded as chairman by Marshall Pierite, formerly vice chairman of the tribe, from August 2013 through April 2014. The current chairman is Joey P. Barbry, who will serve through April 2018.