Does the name Ansel Adams ring any bells? Dorothea Lange? What about Vivian Maier? All three are brilliant photographers, but you’ve probably never heard of the last, a mid-century street photographer, unless you read this “New York Times” article or caught last month’s movie theater screening of “This American Life Live!” (you can view a recap of the show here or listen to the podcast version here).   Most of Vivian Maier’s work was produced in Chicago in the 50′s and 60′s, where she worked as a nanny. Those who knew her remember her as an intensely private woman who never went anywhere without her camera in tow. She took more than 100,000 photographs, stacking negatives beside old newspapers in her room, never sharing…