From the NY Public Library Blog:
The New York Public Library is pleased to announce the launch of Photographers’ Identities Catalog (PIC) (PIC), a collection of biographical data for over 115,000 photographers, studios, manufacturers, dealers, and others involved in the production of photographs.
PIC is world-wide in scope and spans the the entire history of photography. So if you’re a historian, student, archivist, cataloger or genealogist, we hope you’ll make it a first stop for your research. And if you’re into data and maps, you’re in luck, too: all of the data and code are free to take and use as you wish.
The complete blog post has more including suggested uses and how to contribute more data.
Yet another wonderful project and useful resource from NYPL Labs.
Direct to Photographers’ Identities Catalog (PIC)
Direct to PIC FAQ