Bletchley Park surprise

My Sister Patsy Ellerker was reading a book about Bletchley Park and found this photo, she was surprised to see a  younger me in the photo, she showed the photo to my other Sisters they all agreed that although it wasn't me it was our Mum! Alice Joan Blackey nee Brotherhood, she was ATS Y Branch and served at BP during the war. Mum never told us where she served in the war, it was only when visiting us that she mentioned it. My husband Bill was packing after a weekend, Mum asked him where he was going and he said he was going on a course at a place she probably hadn't heard of called BP, she laughed, she said she'd not only heard of it, she'd worked there and she asked if the huts were still there! She went on to tell us she was in hut 3, it was strange as hut 3 was not next to huts 2 and 4 but next to hut 6 and they had a chute connecting the two through which messages were passed. Her name is on the Roll of Honor. In the photo shes second from the L,F row.