I was sent Robert Lara Cathcart's will recently by the Alachua County Florida Clerk of the Court, (thanks very much Jim!).
There are mentions of several children, grandchildren and a look into the guardianship of the Shirley grandchildren. Perhaps this has something to do with Robert's son-in-law Darling Shirley getting $1!
If you continue to search, you'll find several other interesting listings.