Some things haven't changed in 60 years! Soaking in water is still the best way to remove stamps from paper.
A search on this site will give you some good techniques.
there wasn't too much moisture or pressure on the album and the stamps aren't tightly adhered to the paper, you may *SOMETIMES* be able to get the stamps off the paper by gently putting your stamp tongs under the stamp and lifting. Don't use force. If it flicks off, good. Using pressure will damage the stamp or damage the perforations.