Mo. Rev. Stat. § 14.020: Notices to be entered in federal tax lien index.

When a notice of such tax lien is filed, the recorder or clerk shall forthwith enter the same in an alphabetical federal tax lien index to be provided by the county commission, showing on one line the name and residence of the taxpayer named in such notice, the collector's serial number of such notice, the date and hour of filing and the amount of tax and penalty assessed. He shall file and keep all original notices so filed in numerical order in a file to be provided by the county commission and designated "federal tax lien notices".