Posted 01 June 2010 - 05:37 PM
A minefield was discovered off Galley Head on Friday 16th & the next day sloops were sent in to sweep it resulting in Mignonette having her bow blown off. An attempt was made to tow her stern first but she sank. There were fourteen killed and her captain was wounded. On Sunday Alyssum working in the same minefield struck another mine & sank with no casualties. Because of these two sinkings it was decided not to risk deep draught vessels such as sloops & trawlers to sweep this field, but instead to use drifters & MLs until shallow draught paddle sweepers could reach Ireland. Haldon, Hurst, Eridge and Epsom reached Queenstown on April 2nd.
Above details from Danger Zone by Keble Chatterton.
That is another Flower class sloop in the background of your photo but whether it is Alyssum I could not say.