The links here are free and will let you search for early land patents, Civil War Service and County Maps and other genealogy records. The document at right is a land patent image from the Bureau of Land Management site.

BLM_GRO - Land Patents.
Civil War Soldiers & Sailors
Family Search - 1880 census
Census Bureau-Counties
US Genweb Tombstone Project
McKinney Message Board 1
Library of Congress
McKinney Message Board 2
Nashville Southern Christian Advocate