How strange

there are 'Yaw' registrations under Pontypridd reg on freebmd, phonetic search comes up with soundalike 'Yeo', as SS mentioned.
Have looked at local BMD records I have... no Yaw listed on them but they are all not concise.
No 1891 census info for 'Yaw' in area either, possibly mistranscribed or missed off maybe. Do you have birth or marriage cert to post any further info? birth address, parents / fathers name, occ. etc? to help try narrow if they are mistranscribed?
Hoping to help
Cas