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Harry Siddons Mowbray was an American artist. He executed various painting commissions for J.P. Morgan, F.W. Vanderbilt, and other clients. He served as director of the American Academy in Rome from 1902–1904. Wikipedia
The Supper at Emmaus - a popular theme in Christian art - represents the story, told in St. Luke's Gospel when after the Crucifixion, two of Christ's apostles invite an apparent stranger, whom they have just met, to share their meal with them. Source
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This image is in the public domain.