The principal sources for Genesis were the Yahwist, the Elohist and the Priestly Source.
The principal sources for Exodus were the Yahwist, the Elohist and the Priestly Source.
The principal source for Leviticus was the Priestly Source.
The principal source for Numbers was the Priestly Source, with some material by the Yahwist.
The principal sources for Deuteronomy was the Deuteronomist, who was also responsible for the Deuteronomic History.
The JE Redactor combined early material by the Yahwist and the Elohist and may have made minor changes to content. The final Redactor redacted the books into much the form we know today and made minor changes to content.