1929
Dr. Jeffries is born in Rome, Georgia to Andrew Jones and Rachel Lucinda Jeffries.
1950
Dr. Jeffries receives a Bachelor of Science from the University of North Georgia.
1950
Dr. Jeffries becomes a technician for the Georgia Public Health Department in Rome, Georgia.
1953
Dr. Jeffries marries Virginia Mae Alford.
1955
Dr. Jeffries receives a Master of Science from the University of Tennessee.
1955
Dr. Jeffries studies postgraduate courses at Purdue University.
1958
Dr. Jeffries receives a Doctor of Philosophy from the University of Tennessee.
1958
Dr. Jeffries becomes an instructor of microbiology at Wayne State University in Detroit, Michigan.
1965
Dr. Jeffries becomes an associate professor, and later an associate professor of dermatology, at Wayne State University.
1970
Dr. Jeffries is promoted to full professor at Wayne State University.
1972
Dr. Jeffries serves as an acting Department Chairman at Wayne State University.
1975
Dr. Jeffries becomes Director of Graduate Programs and Assistant Dean for Curriculum Affairs in the School of Medicine of Wayne State University
1990
Dr. Jeffries serves as a voluntary professor in the Department of Biological Sciences at Wayne State University.
1996
Dr. Jeffries becomes Professor Emeritus at Wayne State University.
1996
Dr. Jeffries becomes professor and chair of the Department of Microbiology and Immunology at Ross University School of Medicine in Roseau, West Indies.
1997
Dr. Jeffries serves as Dean of Basic Sciences at Ross University School of Medicine.
1998
Dr. Jeffries is appointed dean of Ross University School of Medicine.
2000
Dr. Jeffries serves as a guest lecturer.
2005
Dr. Jeffries becomes an adjunct instructor in the College of Health Professions at Davenport University.
2017
Dr. Jeffries is presented with the Albert Nelson Marquis Lifetime Achievement Award from Marquis Who’s Who.