"There are some Greek Orthodox and some Russian (OCA)." And you say these were second marriages and divorcees?
I am obviously saddened to hear this and greatly shaken. What more can I say than that?
You do know, of course, that the Orthodox Church does not recognize marriages outside of the Church. Could these have been people who married in the Church after converting to Orthodoxy?
Not second marriages, marriages between Orthodox and non-Orthodox.