| Era Group* | Years | # Alumni | Representatives |
|---|---|---|---|
| Era I | 1938-1973 | 5,535 | Robert E. Aberlin ’66 Eric B. Bresttschneider ’68 Charles S. Fox ’70 Douglas M. Bregman ’71 |
| Era II | 1974-1983 | 6,180 | Mary Kay Leonard ’74 Amr Nosseir ’76 Elizabeth A. Hartman ’80 Reuben S. Hendell ’82 |
| Era III | 1984-1991 | 5,679 | Margaret J. Palladino ’82 Francis J. Hearn, Jr. ’86 Jeffrey T. Veber ’87 Jayanth J. Chandrasekhar ’90 |
| Era IV | 1992-1999 | 5,785 | Stephen C. Mehos ’89 Julie Brown Ackerman ’93 Paul B. Carberry, Jr. ’94 Liza D. Snell ’94 |
| Era V | 2000-2007 | 6,039 | Christie A. Philbrick-Wheaton ’04 Keith L. Brooks ’01 Keisa A. Caesar ’01 Saurabh Arora ’04 |
| Era VI | 2008-2015 | 6,194 | Meeann K. Dingman ’09 Mari C. Jones ’09 Michael E. Miller ’12 Denny Gonzalez ’13 |
| Era VII | 2016-2023 | 5,508 | Tinofara O. Majoni ’13 Marvin K. Vilma ’14 Elizabeth A. Marino ’16 Halley D. Weinreb ’17 |
| Total Alumni | 37,920 |
*NOTE: Era groupings are reconfigured every three years to reflect an even distribution of the current alumni population. The Era groupings above are based on a reconfiguration done during the summer of 2023.