The Duck family's roots date back to 1618 when Captain Thirtyville, his nephew Donald Ducktargen and his nephews Houie, Louie, and Dewie (the Three Cadet Muskateers), moved to America to establish their clan.
Boatsman Pintail first appeared in Carl Barks' "Back to Long Ago" in Uncle Scrooge #16. According to the story, he and his superior, Matey McDuck buried a treasure of potatoes for Captain Loyal Hawk of The Falcon Rover. He drowned three days later and was later reborn as Donald Duck. His debut story does not mention any geneological relation to Donald, and he is simply referred to by Matey McDuck as "Bos'n Pintail", with "Pintail" presumably being intended by Barks as the character's last name.
Humperdink "Grandpa" Duck
- Main article: Humperdink Duck
Elviry/Abigail "Grandma" Duck
- Main article: Grandma Duck
- Main article: Quackmore Duck
- Main article: Daphne Duck
- Main article: Eider Duck
Lulubelle Loon is the wife of Eider Duck and the mother of Fethry Duck.
- Main article: Donald Duck
- Main article: Della Duck
- Main article: Fethry Duck
- Main article: Whitewater Duck
Huey, Dewey and Louie Duck
- Main article: Huey, Dewey, and Louie
- Main article: Moby Duck
- Main article: Dugan Duck
Upsy Duck is Donald's uncle from "Mastering The Matterhorn". In the story, one of Donald's triplet nephews mentions that Upsy was their great uncle. According to this story, he gained the nickname "Upsy" because he was a great mountain climber. Donald clearly refers to Upsy Duck as his uncle on the fourth page of this comic story. He says in the first panel of this page, "But Uncle Upsy didn't give up easily!".
Sheriff Dan Duck
Sheriff Dan Duck (aka Cousin Dan) is an old cousin of Donald who happens to be sheriff of a Western town called Bent Spur Gulch. Dan originally has dark grey thick eye-brows, a long dark grey mustache and long dark grey hair on the left and right sides of his head. He is generally showed holding a crutch.
Dudly D. Duck
Dudly D. Duck is a cousin of Donald who appears in the comic story "Why All the Crabby Ducks" by Vic Lockman and Mike Arens. He is a flopped architect and inventor who was responsible for the construction of the "Jog Tunnel", which annoys the citizens of Duckburg because it really has a jog in it, and for the bad planning of Duckburg's streets. Therefore, Dudly became very unpopular and was forced to live isolated in a lonely street, including his name was forgotten until the day that Donald discovers who planned the "Jog Tunnel", and then his girlfriend Daisy Duck reveals who is Dudly Duck through the newspaper where she works as reporter. A reporter rival of Daisy ends up discovering that Dudly is related to Donald, who in turn becomes unpopular too.
Nancy Duck is a female cousin on father's side of Donald. She appears in the comic story "A Likely Story" by Bob Gregory, where Daisy Duck thinks that Donald is having a romantic meeting with a glamorous and beautiful actress who is also called Nancy Duck in his own home. Like Upsy and Dim-Witty Duck, Nancy also tends to keep her eyes half-opened.
Ludwig Von Drake
- Main article: Ludwig Von Drake
- Main article: Scrooge McDuck
- Main article: Douglas McDuck
- Main article: Fergus McDuck
- Main article: Gideon McDuck
- Main article: Rumpus McFowl
- Main article: Hortense McDuck
- Main article: Matilda McDuck
- Main article: Downy McDuck
- Main article: Pothole McDuck
- Main article: Dingus McDuck
Sir Eider McDuck
- Main article: Sir Eider McDuck
Sir Quackly McDuck
- Main article: Sir Quackly McDuck
The surname "Coot" had been used on several ducks by various artists, usually for characters who were relatives of Donald Duck but were not part of the Duck family or the Clan McDuck. When Don Rosa created his Duck Family Tree in 1993, he included the Coots used by Carl Barks and himself as Grandma Duck's family and descendants of Cornelius Coot. It was Rosa's idea to use Coot as Grandma's maiden name, and to have Cornelius Coot as an ancestor of Donald, and it therefore contradicts Barks's work.
- Main article: Cornelius Coot
Clinton Coot was first mentioned in Uncle Scrooge Adventures #27 in the story "Guardians of the Lost Library", first published in July, 1994. He was introduced as the son of Cornelius Coot and the founder of the Junior Woodchucks, inspired by the book given to him by his father. However, there is a Junior Woodchucks story called "Right is Might", first published in Huey, Dewey and Louie Junior Woodchucks #1 on 1966, where one of Donald's triplet nephews sees a big picture adorning a camping tent and recognizes the figure in the picture as being a certain Pioneer O'Duck, described by one of them as "beloved founder of the Junior Woodchuck movement".
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.
He is named after Bill Clinton, who was running for President of the United States when Don Rosa created the character.
Gertrude Gadwall is the wife of Clinton Coot, mother of Elvira Coot (also known as Grandma Duck) and Casey Coot, grandmother of Quackmore Duck, Daphne Duck, Eider Duck, Cuthbert Coot and Fanny Coot, great-grandmother of Donald Duck, Della Duck, Gladstone Gander, Abner Duck, Fethry Duck, Gus Goose and possibly Kildare Coot, and finally great-great-grandmother of Huey, Dewey and Louie and possibly Dugan Duck.
- Main article: Casey Coot
Gretchen Grebe is the wife of Casey Coot, mother of Cuthbert Coot and Fanny Coot and grandmother of Gus Goose.
- Main article: Fanny the Goose
- Main article: Cuthbert Coot
Kildare Coot was introduced by artist Romano Scarpa as a highly eccentric fourth cousin of Donald Duck in the story "Sgrizzo, il papero più balzano del mondo" (roughly translated as "Kildare Coot, the weirdest duck in the world"), first published on October 25, 1964. Though his exact relationship to Donald remains uncertain his last name suggests he belongs to the Coot Kin and that he is related to Donald through Elvira Coot, Donald's paternal grandmother. Curiously, Kildare usually treats Gideon McDuck, Scrooge's younger brother, as his uncle. Kildare and his fellow Andy Ascott (original Italian name) appear as reporters of Gideon's newspaper, The County Conscience, in some Italian stories.
Goosetave Gander is Gladstone Gander's father. Barks intended him to be married to Matilda McDuck, who was Scrooge's sister and Gladstone's adoptive mother. "Us Ganders have never sunk low enough to associate with you Ducks!", exclaimed Gladstone to Donald in "Race to the South Seas" by Carl Barks, suggesting that there are a mutual antipathy between his father's family and his mother's one.
- Main article: Gladstone Gander
Luke the Goose
- Main article: Luke the Goose
- Main article: Gus Goose
While they share the last name as the Duck family, these characters are not related to Donald. These characters include the following.
- Main article: Daisy Duck
April, May, and June Duck
- Main article: April, May, and June
- Main article: Dickie Duck
- Main article: Belle Duck
- Main article: Dim-Witty Duck
Dexter Duck is an anthropomorphic duck who, like Gladstone Gander, contests with Donald Duck to get Daisy Duck's attention. Dexter Duck appeared in one only story thus far, "Double Date" by Tony Strobl, where he plays dirty to beat Donald and conquer Daisy. It's not suggested that Dexter is related to Donald in this story, despite they share the same surname.