text: Wow, this turned out to be a fascinating question!!
  
  I tried looking up some online plat maps, and they show Crow Barn Lane to the north, and Crow Born Lane to the south.  This is the county line, with Schuyler County to the north, and Adair County to the south.  Neither county appears to have their GIS system (if they have one) available online.  The University of Missouri has some scans of historical plat books for both counties.  While the detail in those books is rather small and does not list road names, there is a clue.  The properties on the north edge of the current end of Crow Barn Ln in Schuyler Co were owned by "A. Crow".  So it would make sense that it was named "Crow Barn Lane" because A. Crow's barn was at the end of that lane way back when.  (It also shows the roadway/easement continuing north to where J Hwy is.)
  (Continued.... 1/2)