We had something like this in a game I was in back on LJ. For that game you had a full app (which I'm 112% fine with not having here), but then there was a small form you had to post on your journal (lots of people put it on their journal's profile) with basically the info you stated here + a canon close CR chart.

Elrond: father of Elrohir, Elledan, and Arwen. married to Celebrían (daughter of Celeborn and Galadriel) ...or something simple like that.