I'm not sure which specific 'true story' you mean. There are many real - life accounts, and without more context, it's impossible to say whether a kid dies or not. For example, in some tragic accident - related true stories, a child might unfortunately die. But in other positive or non - life - threatening true stories, a child would survive.
Yes, many children died in the Titanic disaster. It was a tragic event and the lifeboats were not sufficient to save everyone on board, including a large number of children.
No, Hersh doesn't die. The story doesn't have such a plot development. Usually, deaths of key characters are significant and would be widely known or mentioned, but in this case, it's not the case.