Graphic novelist Joel Christian Gill is on a mission.  He wants to fill one of the great blank spaces in American history — that of black Americans.  Gill released the acclaimed “Strange Fruit, Volume I: Uncelebrated Narratives from Black History” in 2014, and followed that up with 2 in-depth editions of “Tales of the Talented Tenth,” one focused on motorcycle courier Bessie Stringfield and the other on legendary U.S. Marshall — and inspiration for the Lone Ranger — Bass Reeves.  That’s right, that masked man was, in fact, African American.  Now, Gill is hard at work putting the finishing touches on his latest release, “Strange Fruit, Volume 2,” due out next February on Fulcrum Press.  Joel Christian Gill joins Eight O’Clock Buzz host Brian Standing by phone.