The Edyth May Sliffe Awards began with the High School Awards in 1989. The Middle School Awards were added in 1995. Each year's class are listed here:
| High School | 1989 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 2000 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 |
| Middle School | 95 | 96 | 97 | 98 | 99 | 2000 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
The Sliffe Alumni are arranged by state, AMC 12 at the top of the page, AMC 8 at the bottom.
| Canada | Alberta | ms | hs | Manitoba | ms | hs | Quebec | ms | hs | ||
| British Columbia | ms | hs | Ontario | ms | hs | ||||||
| Intern'l US Sch. | Kwajalien Atoll | ms | hs | Puerto Rico | ms | hs | |||||
| United States | Alabama | ms | hs | Kentucky | ms | hs | New Mexico | ms | hs | ||
| Arkansas | ms | hs | Louisiana | ms | hs | New York | ms | hs | |||
| Arizona | ms | hs | Massachusetts | ms | hs | Oklahoma | ms | hs | |||
| California | ms | hs | Maryland | ms | hs | Oregon | ms | hs | |||
| Colorado | ms | hs | Maine | ms | hs | Pennsylvania | ms | hs | |||
| Connecticut | ms | hs | Michigan | ms | hs | Rhode Island | ms | hs | |||
| District of Columbia | ms | hs | Minnesota | ms | hs | South Carolina | ms | hs | |||
| Florida | ms | hs | Missouri | ms | hs | Tennessee | ms | hs | |||
| Georgia | ms | hs | Montana | ms | hs | Texas | ms | hs | |||
| Hawaii | ms | hs | North Carolina | ms | hs | Utah | ms | hs | |||
| Iowa | ms | hs | Nebraska | ms | hs | Virginia | ms | hs | |||
| Illinois | ms | hs | Nevada | ms | hs | Washington | ms | hs | |||
| Indiana | ms | hs | New Hampshire | ms | hs | West Virginia | ms | hs | |||
| Kansas | ms | hs | New Jersey | ms | hs | Wisconsin | ms | hs |

