Attributed to Cephas Giovanni Thompson, oil on canvas portrait painting depicting a lady looking up, unsigned. Inscribed on verso as Painted by C. G. Thompson. Framed. With the additional information about the frame manufacturer. Cephas Giovanni Thompson, American, 1809 to 1888, was a fashionable portrait painter in his day and today is best known for his 1851 portrait of Nathaniel Hawthorne. Antique American Portrait Paintings For Collectors.