Thomas Smith was alive for the 1850 U.S. Census and possibly for the 1860 U.S. Census. His name appears on an 1858 property map of Parker Township, Butler County, Pennsylvania. This leads me to believe that he was still alive in 1858. The name of Thomas Smith, Jr., probably his son, also appears on the map on adjoining property.
At left is a map of the landowners of Parker Township in 1858. This map comes from the Butler County Genealogical Society where a map of the whole county is available. You can click on the townships to enlarge them and see the names of landowners.
Is this my Thomas Smith or not? I need to look at deeds and wills.