5 Generations:
William Johnson (Great Great Grandson of Yvonne)
Agnes Buell Hanks (daughter of Edith Grattidge and Mother of Yvonne)
William (Rick) Johnson (Yvonnes's Son)
James F. Johnson (Husband of Yvonne)
Frederick Johnson (Yvonne's Grandson)
Sarah Johnson (Great Granddaughter of Yvonne)
Yvonne Brydon Johnson (!)