Winslow Homer
Eastman Johnson, especially "Cranberry Harvest"
George Caleb Bingham - "Fur Traders"
John Singer Sargent's painting called "The Daughters" looks amazing. I think Madame X is incredible and I might see if I can paint a similar pose one day.
Childe Hassam "Rainy Day" reminds me of Richard Estes but in 1885
Andrew Wyeth "Tenant Farmer"
Norman Rockwell
Charles Bell "Sixteen Candles"
Ralph Goings
Richard Estes "Downtown"
Steve Hawley "Descent from the Cross"
John Nava "2nd of May, Los Angeles"