The author uses the phrase “other side of his fame” (line 48) most likely in order to:
F. Suggest that Fairfield Porter was better known as an artist than as an art critic.
G. Indicate that Fairfield Porter was both a renowned art critic and painter.
H. Show that Fairfield Porter was not aware of his popularity as a painter.
J. Suggest that other art critics of the time were more famous than was Fairfield Porter.