Morgan, an attacking midfielder, returns to the Reds from Trafford FC.
“I’m delighted to be back," he said.
"I love the club, everyone knows that. So when I knew the gaffer was interested I jumped at the opportunity to be back with the Red army."
Makinson returns to the club from Widnes.
On the signings, head coach Nathan Rooney said: “We are delighted to get Matty Morgan through the door.
"I was very impressed with him when we played Trafford earlier in the season. Once we heard he was available it was just a case of moving quickly and getting it over the line."
He continued, “Both Geoff and I have known Matty Makinson since his time a Blackburn Rovers.
"He’s a big strong boy who can definitely play and will add physically to our side. The fans know what they are getting from Matty and I’m delighted he’s agreed to join us."
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