Whiskey Lullaby Songwriter

What singer and composer, after divorcing an Opry star / daughter of an Opry star co-wrote "Whiskey Lullaby?
What what was your inspiration? Not to make it more confusing, or maybe just for that, "but the daughter of the Opry star, is also the widow of a star …. hmmm Opry
Jon Randall and I think his inspiration was his own experience after her divorce from Lorrie Morgan.
Whiskey Lullaby