John B. Callahan is the mayor

Mayor

In many countries, a Mayor is the highest ranking officer in the municipal government of a town or a large urban city....

 of Bethlehem, Pennsylvania

Bethlehem, Pennsylvania

Bethlehem is a city in Lehigh and Northampton Counties in the Lehigh Valley region of eastern Pennsylvania, in the United States. As of the 2010 census, the city had a total population of 74,982, making it the seventh largest city in Pennsylvania, after Philadelphia, Pittsburgh, Allentown, Erie,...

. He was the Democratic nominee in an unsuccessful 2010 bid for United States Representative for Pennsylvania's 15th congressional district

Pennsylvania's 15th congressional district

Pennsylvania's 15th Congressional District is located in eastern Pennsylvania, comprising all of Northampton County, most of Lehigh County, and small parts of Berks and Montgomery Counties...

.
Callahan grew up in Bethlehem. He graduated

Graduation

Graduation is the action of receiving or conferring an academic degree or the ceremony that is sometimes associated, where students become Graduates. Before the graduation, candidates are referred to as Graduands. The date of graduation is often called degree day. The graduation itself is also...

 cum laude

Latin honors

Latin honors are Latin phrases used to indicate the level of academic distinction with which an academic degree was earned. This system is primarily used in the United States, Canada, and in many countries of continental Europe, though some institutions also use the English translation of these...

 with a B.S.

Bachelor of Science

A Bachelor of Science is an undergraduate academic degree awarded for completed courses that generally last three to five years .-Australia:In Australia, the BSc is a 3 year degree, offered from 1st year on...

 in Biology

Biology

Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy. Biology is a vast subject containing many subdivisions, topics, and disciplines...

 from Moravian College

Moravian College

Moravian College a private liberal arts college, and the associated Moravian Theological Seminary are located in Bethlehem, Pennsylvania, United States, in the Lehigh Valley region.-History:...

. After graduation, Callahan worked for Pfizer Inc. for 13 years as a Senior Institutional Healthcare Consultant.

He is a graduate of the Harvard University

Harvard University

Harvard University is a private Ivy League university located in Cambridge, Massachusetts, United States, established in 1636 by the Massachusetts legislature. Harvard is the oldest institution of higher learning in the United States and the first corporation chartered in the country...

 Kennedy School of Government Executive Program on Leadership in the 21st Century, and the Transition and Leadership for New Elected Mayors Program.