| Jack F. Harkness |
 Jack Fraser Harkness was born on Monday, 19th January, 2004, in Bathgate, West Lothian. The defender joined Mark Wilson's Thistle for a trial period in June, 2025, having most recently been with Rangers. Aged 21, he made his debut appearance on Saturday, 28th June, 2025, in a 3-1 friendly win away to Glenafton Athletic. We look forward to seeing Jack score his first goal for Thistle. His club-list includes Rangers, Greenock Morton, Stirling Albion and Partick Thistle. |
 Jack, a right back, came through the youth ranks at Rangers and represented Scotland at U-16 and U-19 levels, latterly featuring for the Rangers B team. He signed a new three-year contract in December 2022 that kept him at Rangers until 2025. In 2023-24, he signed for Greenock Morton in the Championship on a season-long loan deal, before suffering an injury. He joined League 2 Stirling Albion on a season long loan deal in August 2024. Becoming a free agent in the summer of 2025, Jack was invited for a trial with Mark Wilson's Partick Thistle. He played at right back for the final 15 minutes of a 3-1 friendly win away to Glenafton Athletic. |
| (WS) |