Career
He also played twice for The North XI against The South XI and played for the English League XI against the Scottish League XI. After retiring as a player in 1913, Wolstenholme accepted a coaching position in Germany. In the spring of 1914, he was appointed by the Norddeutscher Fußball-Verband (North German Football Association) as team coach/manager of their representative XI. However while there, the First World War broke out and he was subsequently interned at Ruhleben, a civilian detention camp near Berlin. The camp contained between 4,000 and 5,500 prisoners.
Gradually a mini-society evolved and football became a popular activity.
Wolstenholme was one of several former professional football players in the camp. Others included fellow former internationals, Fred Spiksley, Fred Pentland and Steve Bloomer, a German international Edwin Dutton and two fellow former Evertonians, John Cameron and John Brearley.
Cup and league competitions were organised and as many as 1,000 attended the bigger games. The teams adopted the names of established teams and November 1914 Wolstenholme refereed a cup final between Tottenham Hotspur and Oldham Athletic.
Among the players participating were Bloomer, Spiksley and Dutton.
On 2 May 1915 an XI featuring Wolstenholme, Pentland, Brearley and Bloomer played a World XI captained by Cameron. Wolstenholme also played cricket at Rubleben and in July 1916 played for a Yorkshire XI that lost to a Lancashire XI, featuring Bloomer.