This was my Grandfathers family from Ringsend. My grandfather was Christopher and I remember my aunt Margaret and uncle Raymond well. There were more brothers as well whom would have been less known to me. One brother you're missing was William who moved to the UK (I thought Birmingham as well). The family were indeed fishermen and dockers. They fished for Salmon in the liffey when the liffey had fish in it. My grandfather died about 10 years ago aged 84.
My own father is also Christopher as well and his siblings are: John, Robert, Thomas, Richard, William, Margaret, Mary and Lena. Margaret had moved to Liverpool and unfortunately past away some years ago.