Port Talbot came under the Neath registration district.Just 2 Trevor Williams about the right time:Trevor S Williams, March qtr 1911Trevor Williams, December qtr 1913 - mother's maiden name Thomas.There are 6 Reginald Williams registered 1915-1917:June qtr 1915, Reginald - mother's maiden name StewartMarch qtr 1816, Reginald A - mmn StephensonSeptember qtr 1916, Reginald W E - mmn BufreyJune qtr 1917, Reginald L - mmn WilliamsSeptember qtr 1917, Reginald T - mmn RobertsDecember qtr 1917, Reginald N - mmn Jones