Joan,
The actual census records for towns N-Z are not uploaded yet by LDS to their pilot site, so South Valley is not there. But the index to the surnames for the 1892 census for South Valley is available. It will be placed on the
Cattaraugus county Genweb soon. I checked this town's index and the surname DAY is found on page 1 of the 1892 state census for South Valley. If you'd prefer not to wait until LDS places the full census records of this town on their site, you could hire a researcher to pull the record for you in
Cattaraugus county.
If you'd like the full census index (surnames only) for South Valley for 1892, let me know and I'll email it to you.
Laura
PS - More town indexes for the 1892 state census will be added to the
Cattaraugus county Genweb site very soon as we finish them (1855,1865, and 1875 are complete). Anyone willing to volunteer to help us complete the 1892 project would be very welcomed!