This is one article that speaks to that, notably writing from 1990. https://www.latimes.com/archives/la-xpm-1990-05-24-fi-444-st...
By the way, I do recommend reading what remains the only biography of Vannevar, "Endless Frontier", written by the same author as OP's article, G Pascal Zachary. It is quite good. The subject probably merits multiple biographies just as many other pivotal people in history also have multiple biographies to provide different angles or more nuance as more information comes to light.