This is going to sound like I'm name dropping, I'm not, just shows how small the Welsh speaking/physiotherapy world is:
His brother (Ben Warburton) is a physio and is marrying another physio, who I work with. She went to Glantaf with Emma's sister. She's a very proud Welsh speaker too. Unfortunately, I don't think Sam and Ben were quite as open to SSiW when I suggested it to her.