I know I'm a bit late, but wanted to share my memories.
Being a child of the 80s-90s, I mainly found out about zoos my family didn’t know about through library books and leaflets. I was brought up in north London so frequently visited London Zoo, both with family and as a school trip a few times (I have a very clear memory of Moonlight World in the mid 90’s with my primary school teacher Mrs Ball, looking at the Bruijn’s echidna, and a kid asking Mrs Ball, “what’s that?”, and her reading off the sign right in front of the kid, “Bruijn’s echidna”, and everyone being herded along to the next exhibit. I don’t remember if she pronounced “Bruijn” correctly though). We visited Paradise Wildlife Park in nearby Broxbourne a few times as well.
My dad took us on a trip to Windsor Safari Park one year, or at least, tried to. We got there and it had been closed for quite some time, but not having access to the Internet, we had no way to know that.
My dad also used to take me to Angel Market in Islington on a Sunday a few times a year, and there was (still is?) a what we’d call nowadays “vintage” shop selling taxidermied specimens, fur stoles, other antiques, and second-hand books. I remember the strange old woman who used to run the shop, I was even afraid of her (she might have told me off for attempting to pet one of the stuffed animals!). I picked up a book there, “Our Magnificent Wildlife” with a bald eagle on the cover, and if I remember correctly, it had a lot of pages about zoo management and curation, and a list of zoos in the back for each country of the world. I first found out about places such as Bronx and San Diego zoos from that book and longed to visit them. It was in 1999 that I’d get the chance to visit one of those, the latter, on a family holiday to California.