Katharine, his first wife, died in 1662, and a year later Hevelius married Elisabeth Koopmann, the young daughter of a merchant family.
Katharine, istri pertamanya, meninggal dunia pada 1662, dan setahun kemudian Hevelius menikahi Elisabeth Koopmann, seorang putri muda dari sebuah keluarga saudagar juga.