El Gran Pattullo

Glaswegian George Pattullo travelled to Catalunya due to his connections in the coal trade. He was a noted tennis player, who played casual football for an ex-pats team. The story goes that Pattullo played in goal, and that in one game, with his team 5-1 down, he swapped places with the centre forward at half time and scored 5 goals. Joan Gamper saw the performance and persuaded Pattullo to turn out for Barca.
 Pattullo made his debut in September 1910. During the 1910-11 season Pattullo scored 41 times in only 20 appearances as Barcelona won the Campionat de Catalunya.
A confirmed amateur who declined or refunded expenses, Pattullo returned to Scotland at the end of the season.
Remarkably in 1912 he travelled back to Barcelona in order to appear in the semi final of the Copa Pirineos against Espanyol. He scored twice as Barcelona won 3-2. Pattullo did not appear in the final.
His overall record for Barcelona was 43 goals in 23 games between 1910 and 1912. 
Pattullo served with distinction in the 1914-18 War. He was affected by poisonous gas and there is no record of him playing any further football. In the 1920s he returned to Spain and was manager of Baleares FC in Mallorca in 1930. 

Acknowledgements to Alan Pattullo and Gavin Jamieson.