Several years ago when I was in college my parents sold their house. I wasn't going to leave the property without some of the delicious red raspberries I had grown up with so I trasplanted several to their new property and some to my properties. They just celebrated their 42nd year of marriage and told me they got the plants around the time they got married, from my mom's cousin. So I guess they would be heirlooms (even though when I transplanted them I knew nothing about that) but I would like to ID them. Where can I start?

Just a side note- before I dug them up I read in a garden book that raspberries are very disease prone and should be removed and burned about every ten years. Good thing I ignored that advice. Mine are healthy as can be, and DELICIOUS.