Emmons, based in Philadelphia, works in a variety of media (but his background is in drawing and printmaking. There is something spare and architectural in this piece. There is lots of space.
Lias was an American artist who received a BFA from Carnegie Mellon and an MFA from the University of Iowa. His abstract work is held in numerous mueums including; the Brooklyn Museum, Allentown Art Museum, Palmer Museum of Art, Auburn University and others. These pieces below are engraving, relief and gauffrage. Gauffrage is adding a permanent pattern to a fabric.
Or in this case (via email from Ron Rumford at Dolan Maxwell)--
"Gauffrage in Mr Lias’s work refers to carving into the copper plate with a tool called a scorper. This allows for a deeply embossed shape that does not hold ink and appears raised within the composition. The comma shape at the upper left and the hook shape, lower left were executed this way."
White was born in Chicago and was, at least in part, known for the murals he did for the WPA. His social realist art, paintings, drawings and lithographs depicted African-Americans at work, images of social and economic struggle and portraits, like the piece below. Woman in a Hat is 5 1/2 x 5 1/4 inches and is watercolor on board.