[1] There he painted a mural for the Federal Art Project in the Frank Wiggins Trade School which was subsequently removed because of its objectionable content.

[2] Katz also created a mural for the 1933 Century of Progress Chicago World's Fair, as well as assisting the muralist José Clemente Orozco on the frescos at Dartmouth College.

He produced prints there and became involved with the management of the Atelier when the owner, Stanley William Hayter returned to Paris.

[1] In 1960 he wrote a history of Atelier 17 that appeared in Print, America's Graphic Design Magazine in the January-February edition.

[1] He was chair of the art department at the historically Black Hampton Institute in the early 1950s where he taught 20-year-old student Benjamin Leroy Wigfall, who in 1951 was the youngest person whose artwork was purchased by the Virginia Museum of Fine Arts.