Build Ruth = ?

There is a children's rhyme with the words, "the house that Jack built".

http://www3.amherst.edu/~rjyanco94/literature/mothergoose/rhymes/thisisthehousethatjackbuilt.html

The author is playing on that well-known cadence. In this case, the school that educated Babe Ruth is "the house that built Ruth".

The former Yankee Stadium is said to be the house that Babe [Ruth] built. It is the notion that the legendary baseball player started the Yankees dynasty of 27 plus world series championships because he played so well for the Yankees team at home.

The author is referring to the school in which Babe Ruth attended before his career as a baseball legend. It is a play on the legendary nickname of the Yankee Stadium.

Thank you both