Anonymous, Its hard to help when you don't tell us either in the question or the profile what country these people lived in.
You need to provide at least the information that you have for others to assist you. If you provide LESS than all that you know, then you should expect us to have LESS success than you have had.
Populate your referenced profiles with everything you know that is relevant - and edit your question to link to them. There are lots of people here that are keen to help but they need to know at least what you do.
Please use the edit option under your question (when you are logged in) to add the extra information to your question, then I'm sure that you will get lots of help.