Welcome to rootschat Nikki.
This forum is generally for researching lost deceased ancestors rather than reuniting family. We also have a no living person's policy so we are not allowed to mention the names of anyone still living.
Someone may be able to help you via the personal messaging system, which is activated after you have made couple more posts ( just reply here again).
Any correspondence can then happen privately.
Whereabouts in the world was your half brother born, and what year? You have posted this request on the wrong board, and when I know the answer to this question, I will ask a moderator to move this query to the appropriate board. It might also be a good idea to change your subject heading too, to give more of an idea of what you are looking for - for example, "searching for half brother born (year) in (place)".
There may be a way to find him via births registered in a certain time frame in a certain place with your father named as father. If he is not named as the father then it will be more difficult I think.
