Sources: MsMag2
- SLC per Jean Clemens to Raffaello Stiattesi, 14 January 1904 · Florence, Italy · UCCL12603
- Jean Clemens to Raffaello Stiattesi, 18 January 1904 · Florence, Italy · UCCL11778
- Jean Clemens to Raffaello Stiattesi, 10 February 1904 · Florence, Italy · UCCL11777
- Jean Clemens to Raffaello Stiattesi, 12 February 1904 · Florence, Italy · UCCL11776
- Jean Clemens to Raffaello Stiattesi, 3 April 1904 · Florence, Italy · UCCL12939
- M. L. Besier for OLC to Raffaello Stiattesi, 1904 · Florence, Italy · UCCL12938
1