If the name of the elements you are grouping are known in advance you can use one of the numbered elements as an "anchor" for a for-each loop or template and to easily extract the number. You can then retrieve all other elements.
Following up on my previous answer (XSLT For-Each loop to get data from enumerated tags?), this one requires a simple modification. That said, since you say you got lost at certain points, I'll add an explanation at the end.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.