Glue Removal Help

[demiraks-world.livejournal.com]

A couple of years ago when my grandpa died we threw together a couple "photo" boards - old photos on a piece of foam core.

I think we just used a regular glue stick, but the old photos are on more of a paper paper than a glossy photo paper.


Anyway, I want them off the foam core and I'm wondering if anyone has any ideas on how to remove/loosen the glue that won't ruin the photos - maybe warming or a slight steam or....?


Any ideas?