4th October 1914 Sunday
Remained in trenches, post arrived, letters and papers very welcome. Our guns firing rapid all day. Grumbling (?) at shortage of Jack Johnsons – Coalboxes.
A ‘Jack Johnson’ was the British nickname used to describe a heavy, black German 15-cm artillery shell.
Jack Johnson (1878-1946) was the name of the popular U.S. (born in Texas) world heavyweight boxing champion who held the title from 1908-15.
“Coal Box.” was the nickname for a high explosive German shell fired from a 5.9 howitzer which emitted heavy black smoke.