Please help me identify the manufacture to source repair parts
Unfortunately, I don't recognize this door and I am unsure who might have made it. Based on its age, there's a good chance that no complete record of hardware exists. In cases like these you need to identify each damaged component on a part-by-part basis. Additionally, since most of the parts you need likely aren't made anymore, you would then need to take lengths to identify potential alternatives to obsolete hardware with the understanding that there may not be alternatives for some of these parts.
We can do our best to assist you with this project, but we need clear and unobstructed photos of each part you want to replace along with precise, written measurements.