Boaler Family

[Mervyn Bartalis]

I am new to this - and am researching my wifes family - the Boaler family. I know that my father in laws Father Walter Ernest Boaler was originally married in 1883 to Sarah Ellen Humphreys and they had 4 children 2 of whom died at a very early age. I presume that Sarah either divorced or died as my father in law Henry @Harry' as he prefers was born in I think 1922 and had 3 sisters Margaret (who is now dead) Helen although may be know as Nellie and Alice who is now in a home. Can find no trace of a 2nd marriage to a lady by the name of either Crowley or McCarthy in Penrhiceiber near Mountain ash.
Would really appreciate some help on this please
bartalis@btinternet.com thanks