You can approximate how old someone was on death from the skeleton, I think. Not the exact age but close enough. Teeth, too, and from the look of things there were teeth left. Since we have a last name it may not be necessary, but we could trace for living descendants through her genes if anyone consents to tests. The body is recent and intact enough that there should be genetic material left.

[Paul nervously reveals a pile of stones he gathered while he was at the site where he discovered the journal. He seems relieved that his idea was a good one, and lays roughly half of them down at the site. Then he offers the other half to Ari.]

Whatever the captain decides, I’ll go along, but I’d be honored to participate. She must have been a brave person when she was alive, to make a decision like that. Turning on your senior officer is never a decision to be made lightly. She deserves a proper ceremony in her honor. We can at least make sure she’s recognized as a hero now. While we can’t do much for her, we can do her that small favor.

[Besides universal cultural stigmas against treason, it would be very easy to frame such a person, however justified their actions were in truth, as a traitor. People are inclined to believe their leaders, Paul figures, even when they shouldn’t.
He follows Ari to the shuttle, head low as he thinks.]