Artist's sketch of the mural
<bdi><a href="https://en.wikipedia.org/wiki/en:Luigi_Gregori" class="extiw" title="w:en:Luigi Gregori"><span title="Italian painter (1819-1896)">Luigi Gregori</span></a>
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<a rel="nofollow" class="external text" href="https://sniteartmuseum.nd.edu/assets/134872/gregori_artist_in_residence_catalog_2.5_mb_pdf_.pdf">Artist in Residence: Working Drawings by Luigi Gregori (1819–1896)</a>