Hi A. Dale Cornelius,
Welcome to History Hub.
Records for Eldred Township, McKean County, PA for the 1880-1900
You need to contact the Recorder of Deeds click below for webpage and information
Deed indexes (grantee & grantor) 1806 - 1972 for McKean Co PA are on familysearch.org. One set of indexes is arranges by the first two letters of the surname (all the Co... are together). The same below that I found for Cornelius is for land in Bradford Twp, not Eldred, but it hopefully will show you the approach to use.
I then went to the 2nd grantee index that is arranged just by the first later of the surname and using the first entry for Cornelius above I found the date of the deed:
Since this deed was prior to 1886, I went to book Z, p 310-311 to see the actual deed.
familysearch.org is a free site, you just need to register.