Letters of condolence on his death,
Part of Sir Haydn Jones Papers,
Letters of condolence on the death of Henry Haydn Jones (d. 2 July 1950), addressed to Lady Haydn Jones. The dates of the individual letters are not given in the original typescript schedule, and are assumed to be the same year as the death.
Letters of congratulations on his election victories,
Part of Sir Haydn Jones Papers,
Arranged by election. The dates of the individual letters are not given in the original typescript schedule, and are assumed to be the same year as the election.
Letters of congratulations on his knighthood,
Part of Sir Haydn Jones Papers,
Letters of congratulations to Henry Haydn Jones on his knighthood, May 1937. Arranged by name. The dates of the individual letters are not given in the original typescript schedule, and are assumed to be the same year as the knighthood.
Part of Sir Haydn Jones Papers,
Arranged chronologically.
Papers relating to Cân a Moliant,
Part of Sir Haydn Jones Papers,
The Welsh non-denominational hymn and tune book Cân a Moliant was compiled by Henry Haydn Jones and published by Hughes a i Fab, Wrexham, in 1916.