Question: Who is Horace Evans, 1St Baron Evans's paternal grandfather?
Sentence (from "Harry Evans (composer)"): He was born in Dowlais near Merthyr Tydfil, the son of a local choirmaster, John Evans (Eos Myrddin), and learned music at home, showing such precocious talent that he was appointed organist of Gwernllwyn Congregational Church at the age of nine.
Relevant evidence: Yes