When Eastern declared bankruptcy for the final time in January, 1991, my mom and dad were holding frequent flyer tickets to Hawaii that I gave them. I had to really scramble to get them seats on Delta, actually meeting them in the West Palm Beach airport a few days later with the certificates necessary to get them on their way. This was pretty close to Eastern's last airline timetable, if not the last.
Here's a picture of an Eastern DC-10. They weren't around very long; Eastern leased them for their Miami-London route which Continental ultimately assumed. I was bumped up to first class on my trip in 1985 and it was my first international flight.
Here's an ad featuring the trustee of Eastern before its final demise.