I think so too, Rosie!
The only thing is that "our" one is still going to be a child then, so more research would be needed, or getting hold of the full will from Berkshire.
Re Joshua will
It looks as though that Joshua was buried at Sulhamstead Abbots in 1816, age 80.
So is rather unlikely to be the father of John Richard, but he might be a grandfather, you never know. But I have no idea, it is a long will (I don't fancy wading through it!)
Don't forget that you can also download it for free from TNA. It's worth doing because they seem to greyscale those PCC wills images, which sometimes helps with legibility as compared to ancestry.
John