Welcome to the list! It's very cool that you have razors and equipment with family history.

One thing I would do is send the razors you're going to use out for a honing. If you're like me, you see the stone, you see the razor and you think, OK, I'll give it a go. But as I've found, honing a razor is much harder than a knife. It would be easy to start the edge of your razor down the wrong path with a bad hone. Or you could fumble and chip the blade, etc. Plus by having an expert hone your razor you'd know what a quality honed razor feels like. There are a few people on the list who will hone for free. You pay shipping. Utopia is one. You can also look in the classifieds here for those that charge. You could also do what I did and purchase some old cheap razors off ebay to practice honing. Anyway have fun and good shaving.
Kent