The complete recorded works of Grayson and Whitter is available on Document. DOCD-8054 and DOCD-8055. The first CD has 22 tracks and the second has 14 more, plus seven tracks of Robinette & Moore from 1929.
All of the songs that Jerry listed are contained in this collection with the exception of Banks of the Ohio.
Jerry, could you mean On the Banks of Old Tennessee? Or is the "Complete Recorded Works" claim incorrect?