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Steve John's idea is sound, but before you do try UN-DU. It's designed for removing adhesives from old photos, dries wicked fast and leaves no residue. It also didn't soften the paper, leave a stain nor run the ink on a once scrapbook'd M101-2.
First, I'd excised the loose scrapbook page first, leaving five scrap dots that were glued. It was easier.
The un-du didn't work completely as this item had a couple of different types of adhesives applied over the century. The rest of the blob I used distilled water on a q-tip applied to the scrap portions ONLY and a credit card edge to "shave" off the scrap remnants. Water will soften the M101 stock so wait for the stock to dry before shaving.
Post a picture.
AC Moore carries Un-Du up here in NE. Costs about $4