What recourse do Orthodox people have in remembrance of all these individuals? We have a beautiful akathist, The Akathist for the Reposed, which covers all manner of departures from this life and may be prayed for both Orthodox and non-Orthodox people. It is a consoling canon of prayers. Here is a link to the akathist: http://www.orthodox.net/akathists/akathist-for-those-who-have-fallen-asleep.pdf
Here is a way to bring comfort to the souls that only God really knows. May His will be accomplished in ways unknown to us, that lie beyond our comprehension. While we yet have time, let us pray.