
The "Act to restore William Kile to citizenship" from 1867 references his pardon by Illinois governor Richard Yates and his subsequent service in the Civil War. The citizenship that is restored is that of a "citizen of the state of Illinois." I'll have to do a little searching to see just what that phrase means. I need to look at contemporary Illinois state statute to answer that question as well as what actually happened to Kile's citizenship when he was convicted. He was not the only convict who had an act reinstating his citizenship in 1867.
The Act also refers to Kile's unit and his dates of service. That information should be validated with records that are a little "closer to the original source" than this. There is always chance that a date or unit number is off, but the essence of the statement regarding Kile hopefully is true.
And there are local court records and newspaper records that could be searched for information on Kile's crime as well.
One never knows what one will find in GoogleBooks.