Possibly the swiftest route to your roots.
Irish genealogy website directory.
www.english.upenn.edu/~cmazer/mis1.html
Description:
G. Bernard Shaw (he hated the "George" and never used it, either personally or professionally) was born in 1856 in Dublin, in a lower-middle class family of Scottish-Protestant ancestry. His father was a failed corn-merchant, with a drinking problem and a squint (which Oscar Wilde's father, a leading Dublin surgeon, tried unsuccessfully to correct); his mother was a professional singer, the sole disciple of Vandeleur Lee, a voice teacher claiming to have a unique and original approach to singing.
