2,000 Slum - Dwellers In 55 Motor - Coaches Pass Lord Mayor And General Eva Booth . Fifty - five motor - coaches with 500 mothers and 1,500 children from London ' s slums aboard pass in review before the Lord Mayor of London , Sir Percy Vincent , and General Evangeline Booth , head of the Salvation Army , who were stationed on the platform outside the Salvation Army National Headquarters in Queen Victoria Street . The two thousand slum dwellers were leaving on General Booth ' s outing to Boxmoor , Near Hemel Hempstead . Photo shows : General Evangeline Booth saluting as coaches passed . Next to her is the Lord Mayor . 24 Jul 1936 *** Local Caption ***