Request

If the records are available online, it will be easy for you to even find what you are looking for by searching the internet.

But I doubt if we do have a good online resource for what you are looking for and that leaves you with the offline option which I doubt if people will be willing to help you look for as it may involve visiting relevant offices and asking for documents from people that may not be interested in releasing them.

Just some random thoughts, hope it helps sha.