Hi @nnullzz -
If you wish to post pictures of the items, I'm sure somebody could tell you more about them. The pins and stuff we wear on our suits are not part of the "secret stuff" of Masonry. Some of the symbols shown might have deeper meanings to the ceremonies, so we might be vague about that.
But to answer your question, it depends a little on where you and your family member lived. There's not any sort of protocol. You might check with a local Masonic Lodge to see if they would be interested in them. Someone would probably be happy to "geek out" a bit and talk about what you have.
They are probably like any personal memorabilia from a deceased family member. You could preserve it to remember them. Or you could sell it, but odds are most of the items only hold very little financial value. The market is saturated with dead guys' Masonic pins.
One word of warning: I would caution against wearing it if you are not a Mason. People would come up to you and start talking to you as if you were a Mason, and you would have no idea what they were talking about. It would be awkward for everyone involved.