Clinton Coot was first mentioned in Uncle Scrooge Adventures #27 in the story "Guardians of the Lost Library", first published in July, 1994. There he was introduced as the son ofCornelius Coot and the founder of The Junior Woodchucks, inspired by the book given to him by his father.
In The Life and Times of Scrooge McDuck it is revealed that he is the father of Grandma Duck. In Don Rosa's Duck Family Tree, Clinton is married to Gertrude Gadwall and their two children are Grandma Duck (Elvira Coot) and Casey Coot.
According to Rosa's timelines, Clinton Coot was born in 1830, and died in 1910, aged 80.