can food be brought on board

I am sorry, I didn't take the train ride. However, staff was very friendly in Train Depot

Yes, you can. I don't believe they will stop you. There is no table though to eat it. There is a dining car where you can order some food.

I believe you can. But you can always call and check

Yes and they have food on the train too

Yes

I seen people with snacks that they brought on board. Those had children though. My mom and I took our water's and I had a coffee that I finished up and they didn't say anything.

We were there in August, there is no snack area in the depot any longer. I do believe you can bring your own snacks and drinks.

They do have a snack area in the terminal. You could check with them or call.