Got it, Rhondda. Yes I can see it’s definitely Pwllheli in 1901. 1911 it’s Llanllechan, there’s nowhere near Pwllheli with anything similar to this. Llanfairfechan, Llanllechid maybe, but they’re not close by. The villages near are Llanbedrog, Llannor, Llangybi, Llithfaen, Llanaelhaearn.
A search for Moses doesn’t come up with obvious candidates either.
It could be that he gave a false name or a substitute at least. I’ve seen questionable names on marriage certificates.
Your only option is to try to trace a birth record for him and pay £3 for a transcript through the GRO. Hopefully you can get a mother and father from this.
Have you found him in an earlier census? There was nobody obvious in a search of 1881.