Chris:
I have been looking around a bit.
"Padraic Pearse was born on November 10, 1879 at 27 Brunswick Street, today Pearse Street. From the baptismal records the family name was then spelled Pierce. His father was James Pearse, a native of Devonshire, that southern English county where the Celts of Britain are still unabsorbed. He settled in Dublin and was a sculptor. His mother was Margaret Brady Pearse. Margaret Brady was the second wife of James Pearse." From the Life of Pearse by Desmond Ryan
William (Willie)James Pearse born November 15,1881 at 27 Great Brunswick Street, Dublin, he was the younger brother of Patrick Pearse.
William inherited his father's artistic abilities and became a sculptor. He was educated at the Christian Brothers School, Westland Row. He studied at the Metropolitan Shcool of Art in Dublin under Oliver Sheppard. He also studied art in Paris. While attending the Kensington School of Art he gained notice for several of his artworks. Some of his sculptures were to be found in:
Limerick Cathedral, St. Eunan's, Letterkenny and several Dublin churches including Terenure His well known figure of "The Mater Dolorosa" in Mortuary Chapel, St. Andrews Westland row appears a tragic and prophetic masterpiece. Throughout the countryside you may find his sculptures of the Dead Christ and the Immaculate Conception. The O'Mulrennan Memorial in Glasnevin and a memorial to Father Murphy in Wexford are also his works.
After his father's death he took over the studio business.
Might be worthwhile checking the other spelling!
Pat