Take a look at Golden Showers. It has been available from virtually every nursery, big box store and even grocery stores since its introduction and AARS win in 1957. https://www.helpmefind.com/gardening/l.php?l=2.1835&tab=1

Thank you!! That looks like it could be it!!

I was also going to guess Golden showers, too. Back in the 70s there was really only one yellow climber, and it was everywhere! Many of those old plants are still going strong, so it’s quite the survivor.

Hmmmm.... just because it was planted in the 70s doesn't mean it was a rose that was bred around that time.... could be.....

However, here is a Florida nursery that has several yellow climbers that do well in Florida. So it could be one of the yellow roses on this page.... There list of climbers link back to helpmefind.com so you can get a good idea of what the rose looks like....

These roses do quite well in Florida and since your rose is so old I am wondering if it could be one of the yellow ones on their site.

https://www.rosepetalsnursery.com/climber-roses

Tea Climbers

https://www.rosepetalsnursery.com/tea-climbers/

Sharon thanks for the suggestions! Marechal Nial also looks like a possibility, although HMF says it 'occasionally' repeats rather than good repeat. I guess good care from a knowlegeable gardener could made a difference there.

More clues re Golden Showers - its semi-double large blooms open quickly - here each bloom shattered in a day or two (which is why the name makes sense - always falling petals), but there were always more coming to make up for that. Also, it has very distinctive and visible red filaments in the middle of the bloom.

Jackie

Thanks so much everyone!! I think that Golden Showers has the description closest to my friend's family rose, I'm going to try to find her one here.

'Golden Showers' is pretty ubiquitous -- lots of them still around -- so a likely prospect. My mother had one for at least four decades growing on the side of a woodshed, planted in the early 60s. Here in Livermore, there was a huge (10'h x 12', at least), freestanding one on a large, abandoned piece of land where an old farm house had been torn down (had probably been trained on the house -- 'Dr. Huey' was also there, by the way). It took care of itself there over at least a couple of decades, was never irrigated, and would have repeat bloom on it even in the hottest days of August -- it was a phenomenon that I never got tired of visiting if I was over that way until, finally, the land was turned into a housing development and it was gone.

For what it's worth, based on JoeyWyoming's comment above, I checked out the HMF description of 'Maréchal Niel'. For us, it is continuous-flowering year-round, although it won't have many flowers this time of year. To compare, it would generally be a paler yellow than 'Golden Showers', and if Maréchal Niel', it should have very weak necks, so that the flower hangs almost straight down, when fully open and at its heaviest.

Such gorgeous roses! Thanks everyone for the input, I really appreciate it!