Faculty & Staff


 Julia A. Paxson 


Associate Professor
Department Chair

Ph.D., Yale University, D.V.M. Tufts University Cummings School of Veterinary Medicine
Fields: Developmental and Regenerative Biology
Email: jpaxson@holycross.edu 
Office: O'Neil 335 Phone: (508) 793-3418
Additional Information »


Alimatu Acheampong 

alimatu acheampong professor biology department close image face of the women professor

Lecturer, Biology
Ph.D., Northeastern University
Field: Microbiology
Office: O'Neil 312 Phone: (508) 793-3829




Robert M. Bellin 


Ph.D., Iowa State University
Fields: Biochemistry, Cancer Biology
Email: rbellin@holycross.edu 
Office: O'Neil 331 Phone: (508) 793-3422
Additional Information »




Stephanie Crofts


Assistant Professor
Ph.D., University of Washington, Seattle
Fields: Biomechanics, Functional Morphology, Comparative Anatomy
Email: scrofts@holycross.edu
Office: O'Neil 315 Phone: (508) 793-2594
Additional Information»



Anna Doyle 


Laboratory Instructor
M.L.A. Harvard University
Fields: Molecular and Cellular Biology and Genetics
Email: adoyle@holycross.edu 
Office: O'Neil 314 Phone: (508) 793-3907



James M. Doyle 

professor jim doyle close image of the professor with glasses

Laboratory and Instructor and Manager
M.A., Smith College
Fields: Ecology
Email: jdoyle@holycross.edu 
Office: O'Neil 217 Phone: (508) 793-2588



Catherine M. Dumas 

cathy dumas professor biology close image of professor face

Laboratory Instructor
M.S., Worcester State University
Fields: Anatomy
Email: cdumas@holycross.edu 
Office: O'Neil 214 Phone: (508) 793-2579



Geoffrey D. Findlay 


Associate Professor
Ph.D., University of Washington
Fields: Genetics and Genomics
Office: O'Neil 107 Phone: (508) 793-2655
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Kirsten Hagstrom 

kirsten hagstrom professor biology department

Lecturer, Biology
Associate Health Professions Advisor

Ph.D., Princeton University
Fields: Cell and Molecular Biology, Genetics
Email: khagstro@holycross.edu
Office: Swords 205  Phone: 508-793-3415



Alexis S. Hill 


Assistant Professor
Ph.D., Columbia University
Fields: Neurobiology
Email: ahill@holycross.edu
Office: Swords 233  Phone: (508) 793-3543
Additional Information»


Mary Lou Lombardi-Butler

Lombardi-Bulter biology professor

Laboratory Instructor
Ph.D., University of Connecticut
Fields: Molecular and Cellular Biology
Office: O'Neil 206 Phone: (508) 793-3916


Justin S. McAlister  


Associate Professor
Director, Environmental Studies

Ph.D., University of North Carolina at Chapel Hill
Fields: Marine and Organismal Biology, Oceanography
Email: jmcalist@holycross.edu 
Office: Swords 232 Phone: (508) 793-3417
Additional Information »

Sara Gran Mitchell 

mitchell biology professor

Associate Professor
Ph.D., University of Washington
Fields: Geosciences, geomorphology
Email: smitchel@holycross.edu 
Office: Swords 234 Phone: (508) 793-3420
Additional Information »



Michelle A. Mondoux 


Associate Professor
Ph.D., Princeton University
Fields: Cellular Molecular Biology
Email: mmondoux@holycross.edu 
Office: O'Neil 337 Phone: (508) 793-3360
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 Karen A. Ober


Ph.D., University of Arizona
Fields: Entomology, Evolutionary Biology and Systematics
Email: kober@holycross.edu 
Office: O'Neil 227 Phone: (508) 793-3046
Additional Information »



Prajal H. Patel


Research Associate
Ph.D. Baylor College of Medicine
Office: O'Neil 105 Phone: 508-793-2553
Additional Information»



Jodi Rymer 

rymer professor biology

Director of Biology Laboratories/Senior Lecturer
Ph.D., University of California at Berkeley
Fields: Cell Biology, Physiology
Email: jrymer@holycross.edu 
Office: O'Neil 325 Phone: (508) 793-3711
Additional Information »



Ann M. Sheehy 


Ph.D., Johns Hopkins School of Medicine
Fields: Immunology and Virology
Email: asheehy@holycross.edu 
Office: O'Neil 235 Phone: (508) 793-2255
Additional Information »


William V. Sobczak 


Ph.D., Cornell University
Fields: Aquatic and Ecosystem Ecology
Email: wsobczak@holycross.edu 
Office: O'Neil 221 Phone: (508) 793-3752
Additional Information »



PJ Torres     

pj torres biology professor

Assistant Professor 
Ph.D., University of Georgia
Fields: Ecology, Freshwater and Tropical Biology
Email: ptorres@holycross.edu
Office: O'Neil 207 Phone: (508) 793-3416
Additional Information»



Madeline Vargas 


Ph.D., University of Connecticut
Fields: Microbiology
Email: mvargas@holycross.edu 
Office: O'Neil 333 Phone: (508) 793-3036
Additional Information »


Kelly Wolfe-Bellin 


Director of Biology Laboratories/Senior Lecturer
Ph.D., Iowa State University
Fields: Ecology, Botany, and Environmental Science
Email: kwolfe@holycross.edu 
Office: O'Neil 326 Phone: (508) 793-3781
Additional Information »


Visiting Faculty

Elizabeth Burmester


Visiting Assistant Professor Biology
Ph.D., Boston University
Fields: Conservation; marine ecology; restoration; organismal resilience; symbiosis
Email: eburmest@holycross.edu
Office: O'Neil 125B  Phone: 508-793-3602


Clare Gaffey

purple shield with a sun shape in the middle

Visiting Lecturer

M.A., Clark University
Fields: Geography, GIS, Environmental Science
Office: O'Neil 104
Phone: 508-793-2578


Julia Khodor 


Visiting Assistant Professor Biology
Ph.D., Massachusetts Institute of Technology
Fields: Science education, biological computing, and molecular biology
Office:  O'Neil 108 Phone: 508-793-3544 


Kalpana Kumar 


Visiting Lecturer Biology
Ph.D., Indian Institute of Science
Fields: Biochemistry; molecular biology
Office:  O'Neil 223    Phone: 508-793-2212


Nicole J. Poritsanos

purple shield with a sun shape in the middle

Visiting Assistant Professor
Ph.D., University of Manitoba
Fields: Physiology, Microbiology
Office: O'Neil 125A
Phone: 508-793-2212


Saheli Sengupta

purple shield with a sun shape in the middle

Visiting Assistant Professor Biology
Ph.D., Iowa State University
Fields: Microbiology, Biochemistry, Molecular Biology & Genetics, Neurobiology
Office:  O'Neil 316
Phone:  508-793-3901



Linda Walsh


Office Coordinator
Email: lwalsh@holycross.edu 
Office: O'Neil 115 Phone: (508) 793-2656




Faculty Emeriti

Robert I. Bertin 

robert bertin biology department

Distinguished Professor of Science Emeritus
Ph.D., University of Illinois
Fields: Ecology, Evolutionary Biology of Higher Plants
Email: rbertin@holycross.edu 
Additional Information »




George Hoffmann 

hoffmannDistinguished Professor of Science Emeritus
Ph.D., Univ. of Tennessee
Fields: Genetics, Toxicology, Botany
Email: ghoffmann@holycross.edu 
Additional Information»


ledbetter professor biology

Mary Lee Ledbetter 

Professor, Emerita
NSF Distinguished Teaching Scholar award in 2003
Elected, Fellow of the American Society for Cell Biology in 2018
Ph.D., Rockefeller University
Fields: Cell Biology 
Email: mledbett@holycross.edu 
Phone: (508) 363-2773
Additional Information »


Kornath Madhavan


Professor, Emeritus
Ph.D., Annamalai University
Fields: Developmental Biology, Histology, Reproductive Biology, and Entomology
Email: kmadhava@holycross.edu 
Additional Information »


Ken Prestwich 


Professor, Emeritus
Ph.D., University of Florida
Fields: Ecological Physiology, Animal Behavior, and Conservation Biology
Email: kprestwi@holycross.edu 
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