Both involve Brown Memorial Baptist Church in Clinton Hill, which is stepping up its role in the Atlantic Yards fight. The rally June 10 is at 3 pm, at the corner of Atlantic and South Portland. (Here's my preview.)
On June 19 at 7 pm, Develop Don't Destroy Brooklyn, BrooklynSpeaks, the Brown (Memorial Baptist Church) Community Development Corporation and "Occupy" are holding a kickoff meeting to organize a protest for September 28, when the arena opens.
The meeting's being held at Brown Memorial Baptist Church, 484 Washington Avenue [map].