I'm noting that neither children would have been born in Massachusetts Bay Colony if one accepts Charles Anderson's bio.
MIGRATION: 1634 (based on land grants and freemanship)
i BETHIA HOPKINS, b. about 1631 [TAG 77:25-271; m. (1) Hartford 27 May 1652 Samuel Stocking, son of George Stocking [HaVR 608); m. (2) by 1685 James Steele, son of GEORGE STEELE (1633, Cambridge} [TAG 36:188; GMB 3:1755].
Ii STEPHEN HOPKINS, b. say 1633; m. by 1657 Dorcas Brownson, daughter of JOHN BROWNSON (1637, Hartford) [TAG 38:204 (and the sources cited there).
https://www.ancestry.com/imageviewer/collections/2496/images/42521_...