- CollectionD - University Archive Miscellaneous Donations (D-Numbers)
- SeriesD467 - Deposit relating to Gertrude Mayer, St Mary's student 1906 - 1908
- SubseriesD467/4 - Leonard Joseph Mayer
- FileD467/4/3 - Other documents
- 5 more...
- ItemD467/4/3/6 - London County Council "The Council's Roll of Honour" part XLI
- ItemD467/4/3/7 - Letter from R Wal[e] to Gertrude Mayer regarding Leonard Mayer's wounding and death
- ItemD467/4/3/8 - Woolwich Polytechnic war memorial programme
- ItemD467/4/3/9 - London County Council letter to Mr Mayer and war memorial scroll dedicating the life of Leonard Mayer
- ItemD467/4/3/10 - Correspondence from the Imperial War Graves Commission regarding the grave of Leonard Mayer
- ItemD467/4/3/11 - The Incorporated Society of Inspectors of Weights and Measures Commemorative War Memorial Album presented to the family of Leonard Mayer
- ItemD467/4/3/12 - London County Council programme for the "Unveiling of the War Memorial" at County Hall, Westminster Bridge
- ItemD467/4/3/13 - Commonwealth War Graves Commission certificate for Leonard Joseph Mayer and information on Abbeville Communal Cemetery