- NLW Facs 862.
- File
Photocopies of papers, 1907-1960 and undated, relating to Jean Gregson's grandfather John Broad, Llwynypia (1862-1951), the 'Peter Pan of Welsh Music', singer and conductor of the Rhondda Veteran Maestro Singers; the papers include biographical notes, newspaper cuttings and a record of his eisteddfodic achievements, together with an extract from his diary, September 1907, recording a voyage to America and Canada with the Rhondda Male Voice Choir and a list of places visited in the USA.