These are the only ones we know about – if you have any that would fill in the blanks we would be glad to hear from you.
| 1960 | December? | |||
| 1961 | Autumn | |||
| 1962 | Spring | Summer | Autumn | |
| 1963 | February | May | September | |
| 1964 | January | April | ||
| 1965 | January | March | August | |
| 1966 | ||||
| 1967 | May | |||
| 1968 | July | |||
| 1969 |
Newsletters from other decades: 1960s, 1970s, 1980s, 1990s, 2000s, 2010s, 2020s