§ Major Tryon
During 1936 the amount of overtime performed by the clerical and typing staffs in the London telephone service was 128,800 hours, of which 700 hours were performed by higher clerical officers, 71,900 hours by clerical officers, 47,400 hours by clerical assistants and 8,800 hours by the typing staff. These figures represent an average of about 15 or 20 minutes of overtime a day for each officer. The higher clerical overtime was all performed in the sales branch, in which branch 12,000 hours and 1,000 hours were performed by clerical officers and clerical assistants, respectively. The bulk of the overtime was, however, in the accounts branch, where 56,000 and 45,800 hours were performed by clerical officers and clerical assistants, respectively. The amount of overtime performed by clerks in the traffic and staff branches was 2,000 and 1,900 hours respectively; and 600 hours of overtime were performed by clerical assistants in the traffic branch.