Veteran Yeaman, 32, has inked a new one-year contract, while Logan, 20, should now stay put at the KC Stadium until the end of the 2019 season.
“Jack’s an outstanding talent and has really took his chance this year. He deserves all the accolades he’s receiving and his place in the first-team,” said Yeaman, who has already spent 15 seasons with FC.
“It would be great if another Hull lad could come along and do another 15 years like I have. A young player has to be dedicated and level-headed and Jack’s got all that.
“He’s got all the ingredients to have a successful career and I’m enjoying working with him.
“I’m delighted to be here at the club I love for another year, there’s no other club for me.
“I’m enjoying my rugby and having to adapt my game which has given me a renewed focus and something I’m really excited about.
“It looks like I could have a chance to play a bit of back row too which is something I’m looking forward to and a position I think will suit me and my style of play.
“It doesn’t matter where I play, as long as I’m pulling on the black and white shirt. It’s a proud moment every time I do that and something I will always cherish.
“Next year looks very exciting. It’s a strong squad with a good mix of youth, experience and some good signings, so we all want to be part of that.”
Logan is delighted to have extended his stay with his hometown club, and is looking forward to learning from Yeaman.
“If I have anywhere near the career Kirk has had so far, I will be extremely happy,” he said.
“His record speaks for itself and for a young centre from Hull, he is the perfect person to look up to.
“He helps me out massively. I wouldn’t be half the player I am today without Kirk mentoring me.
“Every time I have a question about what I should be doing or where I should be positioned in attack or defence, my first call will be the coaches but then I’ll always have a little word with Kirk.
“There’s not many centres in the league as good as Kirk defensively and at his peak he was one of the best attacking centres in the world.
“It’s an honour to play for Hull having followed them throughout my childhood and I’m happy to have signed a new deal.
“I now want to secure my place in the first-team for next year and continue to make the starting line-up.”