Thereafter, he continued his studies under the guidance of painter William Merritt Chase in Italy (1910) and Robert Henri in Spain (1912).
Adams's mature style – featuring simplified composition, heavy brushstrokes, and patches of vivid color – shows the influence of both his teachers.
[2] He became known as a specialist in portraits, and his subjects included four U.S. presidents – Calvin Coolidge, Warren Harding, William Henry Harrison, and Herbert Hoover – the artist Francis Focer Brown, and the writers Booth Tarkington and James Whitcomb Riley.
[2] Adams also turned out regional figure studies and street scenes in various media including painting, drawing, and printmaking.
[2] There are also portraits of notable New Orleans residents, including author Grace King, artist Ellsworth Woodward, and mayor Martin Behrman.