en_tn/exo/18/02.md

took Zipporah, Moses's wife

Possible meanings are 1) Jethro took Zipporah to Moses, or 2) Jethro had earlier welcomed back Zipporah.

after he had sent her home

This is something Moses had done earlier. The full meaning of the can be made explicit. Alternate translation: "after Moses had sent her home to her parents" (See: rc://en/ta/man/translate/figs-explicit)