American soccer writing, history & data.
| Season | Name | Abbreviation | Champion | Champion (Tier 2) | Champion (Tier 3) |
|---|---|---|---|---|---|
| 1947 | National Soccer League | CNSL | - | - | - |
| 1948 | National Soccer League | CNSL | - | - | - |
| 1949 | National Soccer League | CNSL | - | - | - |
| 1950 | National Soccer League | CNSL | - | - | - |
| 1951 | National Soccer League | CNSL | - | - | - |
| 1952 | National Soccer League | CNSL | - | - | - |
| 1953 | National Soccer League | CNSL | - | - | - |
| 1954 | National Soccer League | CNSL | - | - | - |
| 1955 | National Soccer League | CNSL | - | - | - |
| 1956 | National Soccer League | CNSL | - | - | - |
| 1957 | National Soccer League | CNSL | - | - | - |
| 1958 | National Soccer League | CNSL | - | - | - |
| 1959 | National Soccer League | CNSL | - | - | - |
| 1960 | National Soccer League | CNSL | - | - | - |
| 1961 | National Soccer League | CNSL | - | - | - |
| 1962 | National Soccer League | CNSL | - | - | - |
| 1963 | National Soccer League | CNSL | - | - | - |
| 1964 | National Soccer League | CNSL | - | - | - |
| 1965 | National Soccer League | CNSL | - | - | - |
| 1966 | National Soccer League | CNSL | - | - | - |
| 1967 | National Soccer League | CNSL | - | - | - |
| 1970 | National Soccer League | CNSL | - | - | - |
| 1971 | National Soccer League | CNSL | - | - | - |
| 1972 | National Soccer League | CNSL | - | - | - |
| 1973 | National Soccer League | CNSL | - | - | - |
| 1974 | National Soccer League | CNSL | - | - | - |
| 1975 | National Soccer League, First Division | CNSL | - | - | - |
| 1976 | National Soccer League, First Division | CNSL | - | - | - |
| 1977 | National Soccer League, First Division | CNSL | - | - | - |
| 1978 | National Soccer League, First Division | CNSL | - | - | - |