They married on March 2, 1957, at the municipal building near the Rialto Bridge, witnessed by strangers and friends including filmmaker Tinto Brass.

[2] Her work earned her a second year of the Fulbright grant, which they spent between Venice and Rome, visiting other artists including Gretna Campbell, Louis Finkelstein, and Lee Bontecou.

In an interview with magazine Western Art & Architecture, Mason explained: "It is important to balance city life with experiencing nature.

In The Brooklyn Rail, publisher Phong Bui describes Mason's position between abstract expressionism and color field painting, noting: "She was interested in neither the former's existential angst nor the latter's use of absorbed color pigments on raw canvas (she paints on primed canvases).

By allowing painterly gestures to coexist with thin, poured layers in a wide range of colors in all manner of hues and saturations, Mason is able to amplify her colors—which are infused with forms that derive from both memory and free association with concrete surroundings in nature—while embracing their complex tonalities.