That fall, he entered it into the American Soccer League which was in the process of collapsing caused by financial losses stemming from the 1928–1929 "Soccer Wars" and the onset of the Great Depression.
Schwarz owned, played for and managed the Americans through the last two years of the ASL's existence.
After the disintegration of the original ASL following the 1933 spring season, the ownership of the Americans and New York Brookhattan helped form a new, but lower professional level, ASL in 1933/34.
The club also earned a "double" in 1954 winning both the ASL championship and the National Challenge Cup.
In 1965, a team named New York Americans entered the International Soccer League (ISL) and reached the final losing the championship to Polonia Bytom.