Yep, the number at the top is the diagram number. The first two letters signify the depot code, such as :
MA Maybank
BD Brookfield
NN Norton
WL Wellford
LH Ludgate Hill
In real life this resume would be a longer list, showing a breakdown of your work for that diagram;
some abbreviations used
REL - relieve existing crew.
RELD - relieved by new crew (usually shows their diagram number so you know who worked the train last.)
JU - join unit (ie get in the cab!)
LU - leave unit
AP - attach portion (couple up)
DP - detach portion
SB - short break
PNB - personal needs break