The Chandler's didn't loan money to the Rothschilds. They loaned it to Bolivia. Please don't repeat an inaccuracy.
If you read the construct of the sentence, them is Bolivia. Do you see Rothschilds ANYWHERE in the sentence?
Morgan and Chandler were interests of the Rothschilds. It is how the Rothschilds weaved their dirty web into Bolivia. Morgan only owned like 5% of "his" company. Rothschilds owned the rest.