Balthazar Huibrecht Verhagen (1881-1950).
- Profession: Poet, playwright.
- Residences:
- Relation to Mahler: Attended funeral Mahler.
- Correspondence with Mahler:
- Born: 00-00-1881 Amsterdam, the Netherlands.
- Died: 29-09-1950 Pretoria, South Africa.
- Buried: 00-00-0000
Until 1939 he was the Director School of Drama, Marnixstraat 150, Amsterdam.
Author of:
- Landstormlied (Waak op, Nederland, ken Uwe krachten) – Music by Alphons Diepenbrock (1862-1921).
- Lydische Nacht – Music by Alphons Diepenbrock (1862-1921).