After retiring from this chair, Lorentz was appointed director of research at the Teyler Institute, Haarlem. However, he retained an honorary position at Leiden, where he continued to lecture.
Pagkatapos umaalis na ito mula sa silya, Lorentz ay hihirangin direktor ng pananaliksik sa Teyler Institute, Haarlem. Gayunman, mananatili siya ng isang honorary posisyon sa Leiden, kung saan siya ay patuloy na panayam.