| Kennedy, Catherine R. | The history of chemical enrichment and the sites of early nucleosynthesis: CNO abundances of galactic carbon-enhanced metal-poor stars | 2011 | Michigan State University | GMOS-S/GMOS-N | USA |
| Voges, Erica S. | The ionization sources of the diffuse ionized gas in nearby disk galaxies | 2006 | New Mexico State University | GMOS-N | USA |
| Longstaff, Emma S. | The irradiated atmospheres of brown dwarf companions to white dwarf stars | 2019 | University of Leicester | GNIRS | UK |
| Melis, Carl Anthony | The life, death, and composition of exoterrestrial planets around intermediate mass stars | 2009 | University of California, Los Angeles | NIRI/MICHELLE/TRECS | USA |
| Bussmann, Robert Shane | The nature of dust-obscured galaxies at z~2 | 2010 | University of Arizona | NIRI | USA |
| Cano, Zach | The nature of gamma ray burst supernovae | 2011 | Liverpool John Moores University | GMOS-N/GMOS-S | UK |
| Steele, Matthew M. | The nature of the [O III] emission line system in the black hole hosting globular cluster RZ2109 | 2012 | Michigan State University | GMOS-S | USA |
| Singer, Leo P. | The needle in the hundred square haystack: the hunt for binary neutron star mergers with LIGO and Palomar Transient Factory | 2015 | California Institute of Technology | GMOS-N/GMOS-S | USA |
| Pracy, Michael Benjamin | The properties and evolution of galaxy populations in the rich cluster environment | 2006 | The University of New South Wales (Australia) | GMOS-N | Australia |
| Johnson, Kelsey | The properties of super star clusters in a sample of starburst galaxies | 2001 | University of Colorado at Boulder | OSCIR | USA |
| Tejos, Nicolas | The relationship between the intergalactic medium and galaxies | 2014 | Durham University | GMOS-S | UK |
| Barentine, John Caleb | The role of gas in galaxy evolution : infall, star formation, and internal structure | 2013 | The University of Texas at Austin | TEXES | USA |
| Pope, Erin Alexandra | The role of submillimetre galaxies in galaxy evolution | 2007 | University of British Columbia | GMOS-N | Canada |
| Gagne, Jonathan | The search for low-mass star and brown dwarf candidate members of young moving froups in the solar neighborhood | 2015 | Universite de Montreal | GNIRS/FLAMINGOS-2 | Canada |
| Liu, Tingting | The Search for Supermassive Black Hole Binaries in the Time Domain | 2018 | University of Maryland | GMOS-S | USA |
| Reed, Sophie | The search for the highest redshift quasars using the Dark Energy Survey | 2017 | University of Cambridge | GMOS-S | UK |
| Bildfell, Christopher J. | The stellar content in clusters of galaxies | 2013 | University of Victoria | GMOS-N/GMOS-S | Canada |
| Wayth, Randall B. | The structure of galaxies and AGN using gravitational lensing | 2004 | University of Melbourne | GMOS-N | Australia |
| Valkonen, Laura Elina | The Sunyaev-Zel'dovich effect in galaxy clusters as a tool for estimating cosmological parameters | 2007 | University of Sussex | GMOS-S | UK |
| Yoachim, Peter | Thick disks in external galaxies | 2007 | University of Washington | GMOS-N/GMOS-S | USA |
