or: All roads lead to David‽
each "~" = "who was a student of"
William-Adolphe Bouguereau
William Bouguereau ~ François-Édouard Picot ~ François-André Vincent and also of Jacques-Louis David!
J.C. Leyendecker
J.C. Leyendecker ~ Jean-Joseph Constant dit* Benjamin-Constant ~ Alexandre Cabanel ~ François-Édouard Picot ~ François-André Vincent and also of Jacques-Louis David!
Norman Rockwell
Norman Rockwell ~ George B. Bridgman ~ Jean-Léon Gérôme ~ Hippolyte De La Roche, dit* Paul Delaroche ~ Antoine-Jean Gros, baron Gros ~ Jacques-Louis David!
&
Norman Rockwell ~ George B. Bridgman ~ Gustave Rodolphe Clarence Boulanger ~ Hippolyte De La Roche, dit* Paul Delaroche ~ Antoine-Jean Gros, baron Gros ~ Jacques-Louis David!
Norman Rockwell ~ Frank Vincent DuMond, aka Du Mond ~ Gustave Rodolphe Clarence Boulanger ~ Hippolyte De La Roche, dit* Paul Delaroche ~ Antoine-Jean Gros, baron Gros ~ Jacques-Louis David!
&
Norman Rockwell ~ Frank Vincent DuMond, aka Du Mond ~ Jean-Joseph Constant dit* Benjamin-Constant ~ Alexandre Cabanel ~ François-Édouard Picot ~ François-André Vincent and also of Jacques-Louis David!
*called