Hundreds mourn Joe Cain Monday, February 19, 2007 By DAVID FERRARA Staff Reporter Covered from head to toe in funeral black and huddled in a corner against the Church Street Graveyard gates, Marilyn Harris and Abigail Reeves waited for the Merry Widows. They were the first to arrive, around 8:30 a.m. Sunday, three hours before 20 anonymous women would slink into the cemetery to grieve. Reeves had invited Harris, her friend of 50 years who lives in Houston, to experience Mobile's homage to Joe Cain. "We're gonna have fun today," Reeves said. "And out of respect for Joe, we're gonna...