Rather than give you a panel-by-panel, I'll go with something more descriptive.
Meredith has the photo album again (I wonder if this involved another "adventure" with the Rolling Chair O' Doom?) and is asking about "Grandpa Jim" and "Grandma Marian". And it looks like this week's memories are going to be about them (likely how they met during WWII and fell in love).
And really, what kid Meredith's age says "I've got time."? That's such a clunky phrase for her to be using.