Henry Rolf Gardiner: Letters to Ann Caulfield, GBR/0012/MS Add.8869, Box: MS Add.8869: Box 1. Cambridge University Library.

Henry Rolf Gardiner: Letters to Ann Caulfield, GBR/0012/MS Add.8869, Box: MS Add.8869: Box 1. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/resources/8075 Accessed September 23, 2023.