This is English so this comes from England. Surprisingly, this is not an idiom. There is no figurative aspect to this saying. Bib and Tucker refers to clothing. Specifically a woman's clothing in the 17th century. To say someone is wearing their best bib and tucker you are saying they are wearing their best clothes.
The name Nellie can come from Ellen, Helen or eilean if a girl or Cornelius if a boy.
France
america.
Jesus
The last name Tucker came from Germany.
Tucker Kloetzke's birth name is Tucker James Kloetzke.
Tucker Chapman's birth name is Tucker Dee Chapman.
Abi Tucker's birth name is Tucker, Abigail Anne.
Albert Tucker's birth name is Albert Lee Tucker.
Brooke Tucker's birth name is Pamela Brooke Tucker.
Forrest Tucker's birth name is Forrest Meredith Tucker.
Ira Tucker's birth name is Ira B. Tucker.
Joyce Tucker's birth name is Arlene Joyce Tucker.
Maureen Tucker's birth name is Maureen Ann Tucker.
Orrin Tucker's birth name is Robert Orrin Tucker.
Roger Tucker's birth name is Roger C Tucker.