Three young Imps will continue their development with loans away from the club for the rest of the 2025/26 season.
Oisin Gallagher will remain with Boston United until the end of the campaign after his loan deal was extended.
The Republic of Ireland U19 international returned from injury in a 2-0 win at Oakwell in the Vertu Trophy before heading to the Pilgrims on loan.
The 20-year-old has played nine games since returning to the Jakemans Community Stadium, scoring against Brackley Town, and he will now see out the season with the Pilgrims.
City have also triggered a contract option ensuring Gallagher will remain under contract for season 2026/27.
City's sporting director Jez George said: “Oisin deserves huge credit for his performance at Barnsley, after so long out from two serious injuries. He’s had no luck, with the second injury being such a freak incident in pre-season after Oisin had returned to training looking so fit from the ankle problem that curtailed his previous spell on loan at Boston last season.
“Oisin showed his talent and potential at Oakwell against a strong Barnsley team against the likes of Davis Keillor-Dunn and David McGoldrick, so triggering his option is a no-brainer. This loan will get him games, which is so important after his 2025, and will best equip him to come back into pre-season ready to compete for a place in our squad for next season.”
Two other young Imps will remain on loan in Northern Ireland through their season-long loans, with Zane Okoro at Coleraine and MJ Kamson-Kamara at Glentoran hoping to chase down Larne in a race for the league title.
George added: "These loans are a big part of their education and we're pleased with how both have applied themselves, performed and the opportunities they're getting.
"We feel it's important to loan our best young players to the highest level possible and in this case both clubs have everything to play for in the second half of the season and the loan is also providing both boys with valuable life, as well as football, experiences.”