From an article in the Villager: The plaque commerating the Stuyvesant Pear Tree on 13th Steet was reinstalled in its rightful place with the assistance of Stuyvesant direct descendant, Nicholas Stuyvesant Fish. Here's the full article.
The picture above is a screen shot of my lower east side map from my google map "collection." It can be made fully functional but it overwhelms the column. I learned about mapchannels from digital urban. The free site also gives you the option to create a link to a full size version of a google map.