anonymous, 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.
You don't even mention a COUNTRY or a DECADE !
If this person has a wikitree profile, then set it to have a public biography and populate it with everything you know that is relevant - and edit your question to link to it ! There are lots of people here that are keen to help but they need to know at least what you do.