| OMPA |
| Mailing | Date | Editor | #Fanzines |
|---|---|---|---|
| 1 | September 1954 | Vince Clarke | 4 |
| 2 | December 1954 | Vince Clarke | 4 |
| 3 | March 1955 | Vince Clarke | 6 |
| 4 | June 1955 | Vince Clarke | 2 |
| 5 | September 1955 | Joy Clarke | 1 |
| 6 | December 1955 | Joy Clarke | 3 |
| 7 | March 1956 | Joy Clarke | 1 |
| 8 | June 1956 | Joy Clarke | 1 |
| 10 | December 1956 | Archie Mercer | 3 |
| 11 | March 1957 | Archie Mercer | 5 |
| 12 | June 1957 | Archie Mercer | 5 |
| 13 | September 1957 | John Roles | 2 |
| 14 | December 1957 | John Roles | 4 |
| 15 | March 1958 | John Roles | 3 |
| 16 | June 1958 | John Roles | 6 |
| 17 | September 1958 | Roberta Gray | 3 |
| 18 | December 1958 | Roberta Gray | 3 |
| 19 | March 1959 | Roberta Gray | 5 |
| 20 | June 1959 | Roberta Gray | 2 |
| 21 | September 1959 | Ron Bennett | 3 |
| 22 | December 1959 | Ron Bennett | 13 |
| 23 | March 1960 | Ron Bennett | 4 |
| 24 | June 1960 | Ron Bennett | 3 |
| 25 | September 1960 | Daphne Buckmaster | 6 |
| 26 | December 1960 | Daphne Buckmaster | 6 |
| 27 | March 1961 | Daphne Buckmaster | 9 |
| 28 | May 1961 | Daphne Buckmaster | 8 |
| 29 | September 1961 | Bruce Burn | 8 |
| 30 | December 1961 | Bruce Burn | 4 |
| 31 | March 1962 | Bruce Burn | 5 |
| 32 | June 1962 | Bruce Burn | 6 |
| 33 | September 1962 | Ken Cheslin | 5 |
| 34 | December 1962 | Ken Cheslin | 6 |
| 35 | March 1963 | Ken Cheslin | 8 |
| 36 | June 1963 | Ken Cheslin | 7 |
| 37 | September 1963 | Ethel Lindsay | 6 |
| 38 | December 1963 | Ethel Lindsay | 3 |
| 39 | March 1964 | Ethel Lindsay | 6 |
| 40 | June 1964 | Ethel Lindsay | 5 |
| 41 | September 1964 | Ethel Lindsay | 7 |
| 42 | December 1964 | Ethel Lindsay | 6 |
| 43 | March 1965 | Ethel Lindsay | 5 |
| 44 | June 1965 | Brian Jordan | 8 |
| 45 | September 1965 | Brian Jordan | 3 |
| 46 | December 1965 | Brian Jordan | 1 |
| 47 | March 1966 | Brian Jordan | 3 |
| 48 | June 1966 | Brian Jordan | 3 |
| 49 | September 1967 | Archie Mercer | 2 |
| 50 | March 1968 | Heinrich Arenz | 1 |
| 51 | 1 | ||
| 52 | date? | Beryl Mercer | 3 |
| 53 | March 1969 | Beryl Mercer | 2 |
| 55 | September 1969 | Beryl Mercer | 1 |
| 56 | January 1970 | Ken Cheslin | 2 |
| 57 | April 1970 | Ken Cheslin | 1 |
| 58 | June 1970 | Ken Cheslin | 1 |
| 59 | October 1970 | Ken Cheslin | 1 |
| 60 | January 1971 | Ken Cheslin | 3 |
| 61 | April 1971 | Ken Cheslin | 1 |
| 62 | July 1971 | Ken Cheslin | 2 |
| 63 | October 1971 | Ken Cheslin | 2 |
| 64 | January 1972 | Ken Cheslin | 3 |
| 65 | April 1972 | Ken Cheslin | 1 |
| 66 | July 1972 | Ken Cheslin | 1 |
| 67 | October 1972 | Ken Cheslin | 3 |
| 68 | January 1973 | Ken Cheslin | 1 |
| 69 | April 1973 | Ken Cheslin | 1 |
| 70 | July 1973 | Ken Cheslin | 1 |
| 71 | October 1973 | Ken Cheslin | 1 |
| 72 | January 1974 | Pat and Mike Meara | 1 |
| 73 | April 1974 | Pat and Mike Meara | 1 |
| 74 | July 1974 | Pat and Mike Meara | 1 |
| 75 | October 1974 | Pat and Mike Meara | 1 |
73 mailings containing 259 individual contributions