In Luncheon of the Boating Party, how is the Subjects depicted of the Interactive image elucidated?
As he often did in his paintings, Renoir included several of his friends in Luncheon of the Boating Party. Identification of the sitters was made in 1912 by Julius Meier-Graefe. Among them are the following:
The seamstress Aline Charigot, who is holding an affenpinscher dog, sits near the bottom left of the composition. Renoir married her in 1890, and they had three sons.
Charles Ephrussi—wealthy amateur art historian, collector, and editor of the Gazette des Beaux-Arts—appears wearing a top hat in the background. The younger man to whom Ephrussi appears to be speaking, more casually attired in a brown coat and cap, may be Jules Laforgue, his personal secretary and also a poet and critic.
Actress Ellen Andrée drinks from a glass in the center of the composition. Seated across from her is Baron Raoul Barbier, former mayor of colonial Saigon.
Placed within but peripheral to the party are the proprietor's daughter Louise-Alphonsine Fournaise and her brother, Alphonse Fournaise, Jr., both sporting traditional straw boaters and appearing to the left side of the image.  Alphonsine is the smiling woman leaning on the railing; Alphonse, who was responsible for the boat rental, is the leftmost figure.
Also wearing boaters are figures appearing to be Renoir's close friends Eugène Pierre Lestringez, a bureaucrat, and Paul Lhote, himself an artist. Renoir depicts them flirting with the actress Jeanne Samary in the upper righthand corner of the painting.
In the right foreground, Gustave Caillebotte wears a white boater's shirt and flat-topped straw boater's hat as he sits backwards in his chair next to actress Angèle Legault and Italian journalist Adrien Maggiolo. An art patron, painter, and important figure in the impressionist circle, Caillebotte was also an avid boatman and drew on that subject for several works.
impressionist Jeanne Samary affenpinscher Angèle Legault Gustave Caillebotte Louise-Alphonsine Fournaise Aline Charigot Luncheon of the Boating Party Alphonse Fournaise, Jr. Charles Ephrussi Raoul Barbier Gazette des Beaux-Arts Julius Meier-Graefe Jules Laforgue Ellen Andrée