- CollectionD - University Archive Miscellaneous Donations (D-Numbers)
- SeriesD467 - Deposit relating to Gertrude Mayer, St Mary's student 1906 - 1908
- SubseriesD467/4 - Leonard Joseph Mayer
- FileD467/4/2 - Letters
- ItemD467/4/2/1 - Letter from Leonard Mayer to his mother Mrs Mayer on first arriving in France as part of the British Expeditionary Force
- ItemD467/4/2/2 - Letter from Leonard Mayer to his sister "Gert" Gertrude Mayer
- ItemD467/4/2/3 - Letter from Leonard Mayer to his sister "Gert" Gertrude Mayer
- ItemD467/4/2/4 - Letters from Leonard Mayer to his brother Arthur and mother Mrs Mayer
- ItemD467/4/2/5 - Letter from Leonard Mayer to his mother Mrs Mayer
- 4 more...