Jack (christened Jabez) White was an experienced defender who signed for Leeds City in May 1908. According to Martin Jarred and Malcolm Macdonald, he was a 'rock solid full-back' who 'could perform on either flank with tenacity and skill ... At Leeds, the perfect timing of his tackles became a trademark'.

He moved through a selection of junior clubs, Ollenshaw United, Grays Anchor, Swanscombe and Grays United, before signing for Queens Park Rangers of the Southern League in 1901. He remained with Rangers for seven years, culminating in the capture of the Southern League title in 1908.

When he joined Leeds a few weeks later, White was at his peak. He quickly became a fixture at left-back, generally performing in tandem with Jock Watson. After his debut in the win at Tottenham on the opening day of the 1908/09 season, the Yorkshire Post opined: 'Another of the individual successes was White at left-back, and in him there can be no doubt that Leeds City have made a decided acquisition.' White had the most consistent of seasons, only being omitted when injured, and impressed greatly in his 31 league and 4 Cup appearances.

He was not quite so outstanding in 1909/10, but was appointed captain after Watson lost his place. He switched seamlessly to right-back to accommodate George Affleck on the left flank and amassed 28 appearances in all.

White's form declined in 1910/11 and he managed just one game. He departed for Merthyr Tydfil at the end of the campaign and the following season helped the Welsh club win the Southern League Second Division championship.

In February 1914 White quit Merthyr and moved back to his roots, playing Lancashire Combination League football for Hurst FC. He retired at the end of the 1913/14 season.