Complex sentence: Its members have included notorious Boston gangsters Buddy McLean, Whitey Bulger, Howie Winter, Joe McDonald, Johnny Martorano, Stephen Flemmi, They were most influential from 1965 under the rule of McLean and Winter until the takeover led by Bulger in 1979.
Split into simpler sentences: Its members have included notorious Boston gangsters Buddy McLean, Whitey Bulger, Howie Winter, Joe McDonald, Johnny Martorano, Stephen Flemmi. Declan (The debt collector) Noade, They were most influential from 1965 under the rule of McLean and Winter until the takeover led by Bulger in 1979.