Sir William Hillier (1853–1911), 4th Earl of Onslow John Collier (1850-1934)

The picture has something of this: people, man, wear, portrait, writer, leader, sit, furniture, indoors, pants, musician, popularity, mustache, room, administration, music.
Perhaps it’s a painting of a man in a suit and tie sitting in a chair in front of a desk with a bunch of books on top of it.