In 1857, for the Cattaraugus County Agricultural and Horticultural Society, John Manley published a book entitled:
Cattaraugus County : embracing its agricultural society, newspapers, civil list ..., biographies of the old pioneers .., colonial and state governors of New York, names of towns and post offices with statistics of each town

He wrote lengthy, detailed bios on eight of the pioneers of Cattaraugus county, whom he personally knew. If you would like one of these bios (in PDF format), please email me and I will send it to you.

The list is as follows:
Benjamin Chamberlain
Peter Ten Broeck
Frederick S. Martin
Chauncey Johnston Fox
Alson Leavenworth, M. D.
Staley Nichols Clarke
(The transcribed bio of Staley Clarke is already posted on this forum)
Francis Smith Edwards
Reuben Eaton Fenton