Dewsbury have signed forward pair Sonny Esslemont and James Thornton on one-year deals.
Loose forward Esslemont, 25, made 18 appearances for Sheffield in the Championship last season.
Prop Thornton, 24, also spent last season at Sheffield but only made one appearance for the Eagles.
Dewsbury coach Lee Greenwood said: “I’m pleased to get Sonny on board for 2020. He is coming in to his prime years now and wants to get settled at a club he is happy at.
“He has a good understanding of the game and is a smart player. I am confident he can become a regular here for years to come.
“James could be an interesting signing for us. He is a Dewsbury lad so will be keen to make it work here.
“He has come for an opportunity to impress and see what happens, which I like. He knows there is competition for places in our pack but is happy to try force his way in.”