To get you started,
You could search on e bay and watch what they go for.
Or do the same with some auction sites.
Don't let the 2360 get away for peanuts that has some value.
Though that depends on the condition and if it runs.
This site has most of your trains in it, but no prices, just their history.
When you look at this go back to the master index and match up the numbers on your trains. most of your trains will be there. At least you could list them accordingly and accurately.
That locomotive in my book at good condition starts around $450 in excellent condition goes up to $1200. Depends on which one you have. Can you see any stripes on it? It has 2 things that came on the top do you have those?
Look at the picture in the link.
Even if it is not in that great of shape I seen them go for a good buck on e bay. The item and the collectors will bid accordingly. You list that at 99 cents and it would probably go for over $200 easy.
You might be better off selling everything separately it will take longer but you will get close to what they are worth.
Beware of some who will buy your whole collection, they will give you pennies on the dollar.
Do some homework and make some money.
Your late husband (may he RIP) might be watching you.