About About the Lehman Special Correspondence Files The Columbia University Libraries has scanned and made available here electronically the Special Correspondence Files of Herbert Lehman. More than 37,000 documents are included. Typed documents have also been OCRed, permitting full-text searching. The Special Correspondence Files of the Herbert Lehman Papers contain correspondence with nearly 1,000 individuals from 1895 through 1963. Beginning with letters from Lehman's family in the late nineteenth century, the series documents the range and scope of Lehman's long career in public service. Lehman started the series in an attempt to isolate materials he wanted for his own personal use.