In 1916 the Port of London Authority Hopper #20, which was built in 1911, was converted into a cargo vessel and renamed Lonclara. On January 4, 1917 the 1,294 ton vessel was at the mouth of the River Wear just off Sunderland, England when she hit a mine which had been laid by SMS UC-31 on Dec. 30, 1916. It is unknown to me how many men were on board at the time, but it is known that four men were lost in the sinking.