These titles have not always been carefully vetted for the quality of the editorial work undertaken. Indeed, there may be some on this list that, because of the way they use the sources, are really more secondary than primary in nature
Safe Haven: The Wartime Letters of Ben Barman and Margaret Penrose, 1940-1943 by 
Dearest Phylabe: Letters from Wartime England by 
Letters and Diaries from the Second World War by 
Scotland's Land Girls: Breeches, Bombers, and Bachaches by 
Waiting for Hitler: Voices from Britain on the Brink of Invasion by 
The Irish Experience During the Second World War: A Oral History by 
Heart's Undefeated: Women's Writing of the Second World War by 
A Parson in Wartime: The Boston Diary of the Reverend Arthur Hopkins, 1942-1945 by 
A Vicar's Wife in Oxford, 1938-1943: The Diary of Madge Martin by 
Forgotten Voices of the Blitz: and the Battle for Britain by 
The Home Front: An Anthology of Personal Experience, 1938-1945Mrs. Milburn's Diaries: An Englishwoman's Day-To-Day Reflections, 1939-45 by 
Young Voices: British Children Remember the Second World War by 
Despatches From the Home Front: The War Diaries of Joan Strange 1939-1945 by 
Dear Helen: Wartime Letters from a Londoner to Her American Pen Pal by 
A Woman in Wartime London: The Diary of Kathleen Tipper, 1941-1945 by Talking about the War: 1939-45: A Personal View of the War in Britain. by
We'll Meet Again: Photographs of Daily Life in Britain During World War Two by These titles have not been carefully vetted for quality, and there may be some among them that, unexamined, are really more primary than secondary in nature. Indeed, this is more a box for books apparently (?) on the boundary between the primary and the secondary.
Adrienne's list of secondary sources has not yet been incorporated below, nor have I really gone looking yet myself:
London Was Ours: Diaries and Memoirs of the London Blitz by 
We Are at War: The Remarkable Diaries of Ordinary People in Extraordinary Times by 
Blitz Hospital: True Stories of Nursing in Wartime London by 
Fashion on the Ration: Style in the Second World War by 
