Some of the letters from von Hugel have been published in Baron Friedrich von Hugel, Selected Letters, 1896-1924, Bernard Holland, editor (1933 edition). The correspondence with Maritain centers around bringing him to the University of Chicago to give a lecture in 1933 or 34.

Frances Crane Lillie, 1870-1958, was a Chicago philanthropist, married to Frank Lillie, a zoologist and professor at the University of Chicago. (Obituaries on File, 1979) The correspondence in this collection is addressed to her from:

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