Hi Mrs D, sorry about the delay, I don't log in every day, and I thought that someone more knowledgeable would have been along!

I'm not certain, but I still think it looks like Ash. Can you remember back a couple of months, before the leaves came out, if the buds were matt charcoal black, then it's definitely Ash.

If it appeared from nowhere, then it's probably Ash.

Are there any Ash trees near to your garden? It's sometimes a help to walk around your area looking at what's growing in the street and in the adjacent gardens, you can compare your leaves with what you can see nearby.

Hope this helps!

Rachel