Thursday 20th August 1914 (Luton)
Map of Luton c.1916 showing waterworks (centre-right) [WW1/VA4/2/1]
The guard on the Hart Lane waterworks has now been doubled following a scare on Tuesday night. A sentry saw a man’s head appear over the wall but when he shouted a challenge it disappeared. When he spotted the head again a few minutes later the sentry fired two shots. A search was carried out for the intruder but nobody was found. Nobody knows now whether there was ever anyone there or whether it was all in the sentry's imagination. Be that as it may, there are now eight sentries on duty at the waterworks at all times. We cannot take the risk that our water supply may be tampered with by German spies.
Source: Luton News 20th August 1914