

Full-time nanny Vivian Maier was an avid street photographer. By all accounts she was a very private individual and her many prints and negatives (more than 100,000 of them, including rolls of exposed but undeveloped film) weren’t discovered until just before her death in 2009. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
John Maloof stands in front of Vivian Maier's photographs hanging at the Cultural Center in Chicago. Maloof, who stumbled upon a huge grocery box in an auction house, discovered her work and has now become her champion. His collection includes about 100,000 negatives, 3,000 prints, hundreds of rolls of undeveloped film, audio recordings, and film reels. Charles Rex Arbogast/AP
Maloof looks at Vivian Maier's negatives on a light table at his home in Chicago. Charles Rex Arbogast/AP
Canada, undated.
Fall 1953. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
September 1956, New York, NY. Vivian Maier/Courtesy of John Maloof Collection/AP
Aug. 11, 1959, Digne, France. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
July 1956. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
Fall 1953. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
Jan. 26, 1955, Uptown West, New York. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
Sept. 28, 1959, New York, NY. Vivian Maier/Maloof Collection/AP
Untitled. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
Aug. 11, 1954, New York, NY. Vivian Maier/Courtesy of John Maloof Collection/AP
1953, New York, NY. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
May 1953, New York, NY. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
Aug. 22, 1956. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
March 31, 1957. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
Canada, undated. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
Untitled. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
1954, New York, NY. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
1953, Queens, New York City. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
1954, New York City. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
April 7, 1960, Florida. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
Jan. 9, 1957, Florida. Vivian Maier/Courtesy of John Maloof Collection/Chicago Cultural Center
This photo shows some of the hundreds of unprocessed rolls of film that Vivian Maier exposed years ago. Though Maier was alive at the time, many of her possessions were for sale due to her delinquency in paying for a storage locker. Charles Rex Arbogast/AP
John Maloof looks through bins of hundreds of unprocessed film and negatives that Vivian Maier exposed years ago. The young former real estate agent bought 30,000 of her negatives for around $400 at an auction of the locker in 2007. Charles Rex Arbogast/AP
Maloof, at his home in Chicago, uses a computer to digitally process negatives taken by Vivian Maier. He is helped by Tony Ryzdon, in the background. In addition to sorting and archiving his vast collection, Maloof is also working on a documentary film about Maier's life. Charles Rex Arbogast/AP
Maloof (l.) and Chicago Cultural Center Chief Curator Lanny Silverman (c.) carry prints of Vivian Maier's work past sign painter Stephen Reynolds as they prepare for the first exhibit of her work in Chicago. Charles Rex Arbogast/AP
Lane Gensburg, whose family hired Vivian Maier as their nanny when he was a boy, looks at a display case of her unprocessed film, an 8mm movie reel, and her cameras during the opening exhibit of her street photography at the Chicago Cultural Center in Chicago. Charles Rex Arbogast/AP
At the exhibition, a 1984 letter sent to Maier soliciting her services as a nanny in Chicago is on display. Charles Rex Arbogast/AP
Maier scoured the streets day and night, venturing into strange and sometimes dicey neighborhoods. Her constant companion was a camera. When she died in April 2009, she had no idea what had become of her work, nor of the interest it was about to stir. Vivian Maier/Courtesy of John Maloof Collection/AP