I may have learned about the Rockwell naming when I was looking up why the building at # 210 has a plaque about him. Turns out his family lived in that location (obv. torn down and replaced by current building) for a couple years when he was born. The kids at the high school across Amsterdam learned about him and did a project about 8 years ago to get the city to co-name the street, and succeeded.

Google says the Odessa Steward naming happened in 2011. http://www.nycstreets.info/honorStreeta7d6.html?b=M&letter=O