22 year-old Australian Williamson joined York ahead of the 2025 season from Canterbury Bankstown Bulldogs in the Harvey Norman Premiership.

She had previously been at St. George Illawarra Dragons, where she made one appearance in the NRLW in 2023.

She possesses a strong running and kicking game and began by playing rugby union, before she moved in to rugby league, where she gained representative honours playing Under 18s Origin.

She agreed a new 2 year contract starting in 2026.