Cherie Ryan nee Kirk

Hello, my name is Cherie Ryan nee Kirk. My grandmother, Faith Kirk married Dr Edward Kirk, my aunty (on my mothers side) has completed our family tree which is how I am finding out a lot of our family history, would love to know more information about my 'step' grandfather. I hear he was a very admirable man which is why my father and his two brothers had their surname changed to Kirk. Edward took on my father as his own son and I would love to know more, thank you