The "value" of some guns is very fluid. I believe the engraved Walther PP my dad brought back from Germany after he took over the Walther factory (Uh, not all by himself) has more sentimental value to ME than even its considerable intrinsic value would be to someone else.
And, little subtle differences in guns can have a dramatic affect on thier value. A stamp in a cetain place, an unusual caliber or barrel length, a variation in the finish, the original grips, the percentage of original finish remaining etc. It is almost impossible to definitively put a price tag on almost any gun...they are worth exactly what someone else is willing to pay for that one gun at the moment it happens to be for sale.
That being said, if you start searching Gunbroker or Gunsamerica, you can see what the auctions end at and get a pretty good idea of the value of that particular type of gun in the current marketplace.
I will look over your Photobucket when I get a chance and give you some rough ideas of what they would likely be worth in my opinion, but, thats all it is, a rough idea. Even geographical differences can hugely impact gun prices. California prices are dramatically higher than Texas prices. And, what gun is "hot" right now in the gun market.
Every gun you have on thier, somewhere, there is a collector that collects THAT style of gun, it would be worth more to him. I like Pythons, I own one, but, somewhere there is somebody that has vastly more knowledge of Pythons than I ever dreamed and, may desperatly need "THAT" gun to finish thier collection...To me, if I can find a good deal on a Python, I would pick it up, but, I pass up Pythons all the time...
Best of luck to you. Don't crack under family pressure, I went through this when my mom died and had to send relatives packing, with empty U-Hauls back to the east coast because they pissed me off..