Status of Yearbooks
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- 1957 - Have (Eta Tetarton formed in summer of 1956)
- 1958 - Have
- 1959 - Need
- 1960 - Have
- 1961 - Need
- 1962 - Need
- 1963 - Have
- 1964 - Have
- 1965 - Have
- 1966 - Have
- 1967 - Have
- 1968 - Have
- 1969 - Have
- 1970 - Have
- 1971 - Have
- 1972 - Need
- 1973 - Need
- 1974 - Have
- 1975 - Have
- 1976 - Have
- 1977 - Have
- 1978 & beyond - Need