At least from his early-middle-aged years until he died in 1884, Paul Morphy reportedly considered chess an amateur activity, not to be pursued as a profession. Yet in his younger years he played many chess games, even defeating adults when he was a small child.
He won the first American Chess Congress in 1857, with the following score:
Perhaps even more rare than the 14-to-1 win/loss ratio (draws did not count in 1857), Morphy refused the cash prize after winning the tournament, very rare for a chess master.
The 18 contestants in the first American Chess Congress (Morphy in the middle of right column)
Chess Games in Europe (1858-1859)
According to Wikipedia, Paul Morphy’s record in Europe was as follows (not including casual games, only formal matches, none of which he lost):
After winning so many games against many of the best European chess masters, Paul Morphy was often proclaimed, by those who saw his victories, the champion of the world.
Paul Morphy – American chess champion
. . . new paperback book, about to be published, really is for the early beginner, the player who knows the rules of chess but almost nothing else about the game.
The [Chess] Congress was advertised to open on the 6th of October  . . . First of all came Judge Meek, of Alabama . . . Soon after him followed Mr. Louis Paulsen . . .
In a study by the New York City Schools, it was found that “Chess dramatically improves a child’s ability to think rationally . . . increases cognitive skills . . . improves children’s communication skills . . .”
Clear understanding of the influences of chess pieces [how they can move] can here make an apparently difficult problem easy to solve.