This is Herbert Beerbohm Tree, the actor, and Max Beerbohm, the writer and caricaturist. They were half-brothers; Herbert the older by nineteen years. When Herbert became an actor in 1876, he added 'Tree' (translation of Bohm) to his name. According to Max, this was because he wanted a "shoutable monosyllable, for purposes of applause."
I really like Max's caricatures (this isn't one of his best, perhaps because he was fond of his brother.) He gave a very useful recipe for them, which also applies to a certain kind of comedy writing:
The most perfect caricature is that which, on a small surface, with the simplest means, most accurately exaggerates, to the highest point, the peculiarities of a human being, at his most characteristic moment, in the most beautiful manner.