# Tjalling Halbertsma

> Haarlem pediatrician (1891–1956)

**Wikidata**: [Q52291551](https://www.wikidata.org/wiki/Q52291551)  
**Source**: https://4ort.xyz/entity/tjalling-halbertsma-q52291551


## References

1. Online Begraafplaatsen
2. Biografisch Portaal
3. Virtual International Authority File