Are you asking has anyone written a biography on J. Pierpont Morgan? I expect they have, though I've never read one or even thought about doing so. I'm assuming you do know who he was.
J. Pierpont Morgan (he droppedt the John and preferred Pierpont, it seems) was a financier and invenstment businessman. He was very rich. The term Bulls and Bears, which refers to people who specialise in buying and selling stocks and shares made reference to Morgan as 'The Bull of Wall Street.' Probably because he bought so much property and so many businessness.
For example, he bought out the famous British White Star line and actually was the owner of that huge shipping company which, of course, included the ill-fate RMS Titanic. He was booked to sail on her but for some reason decided not to.
Apparently he was a rather ugly man physically and this played a part in his being - so I read somewhere - being shy of publicity and the public-at-large. I feel sure if you Google his name you'll come up with a lot on him.