The EQ Printables are wonderful and should work great.
One trick with printing on fabric is to go in and adjust the photos to be darker/more vibrant; TQS had a show on doing this quite a while ago....one of the earlier seasons. It was all about how to adjust the photo settings and printer settings for the best results. I used those techniques/tips to great success in doing my son's comic strip quilt (we printed scanned copies of a comic strip he wrote; it still looks great these 6 yrs later...).
If you can find that show, it will give you some wonderful tips on how to truly make this look wonderful. You might need to get some extra fabric sheets so you can do a few test runs. Or, you could start with one photo, edit it & "save a copy", then continue editing to different levels. Save each step as a new copy, and then print all the varieties (note which one is which) on one sheet; they'll be smaller sized obviously, but would allow you to try the multiple different levels of editing without using more than one or two sheets of fabric. Then use this "thumbnail" preview sheet to select which photo looks the best, and use those editing settings for all the photos you plan to use.
Hope that helps. It's going to be a wonderful quilt, I'm sure, and a precious walk down memory lane for you all. ((Hugs)) to you as you work on this.