Blinks was the first memory I was shown via the quest, so I didn't have any issues remembering where this little guy is sitting. You'll have to go in a building for this one. He's on the balcony of the Photonic Playground at about 42,48.
One wouldn't think that a large dragon taking a nap on a building would be something hard to spot, but believe it or not, this one gave me the most trouble. I never thought of looking up while looking for this memory so imagine my surprise when I found it. Eldragosa can be found napping on the herbalist building at about 44,33.
Eve can be found reading a book near the Antonidas Memorial at around 47,17.
Little "Fidge" is pretty easy to spot since she's at a location you either hearth to or pass by going in and out of the city. She is at the entrance to Krasus' Landing at 61,44.
Fiora can be found sipping her glass of wine upstairs in the Violet Citadel. She is located by a table around 24,50.
Seanus (I wonder who he is a reference too... hmmm? lol) is sitting on the stoop of Glorious Goods. He can be found at 51,67.
Finally we have Vyrin who is looking over a map in the Legermain Lounge. He is standing toward the back of the room at about 48,41.
It's also worth mentioning that the quest Memories of Ebonchill tells us we can seek out a different member each day, sadly there is no achievement tied to this. Hopefully this little visual guide helped if you were having trouble finding them. Now you have no excuse to not buff yourself before going fight through those world quests!