LAWRENCEVILLE… William J. Mates, 67, passed away Wednesday January 11, 2017.

Born in Wilkes Barre,PA,he was a Trenton area resident the past thirty years.

Bill was a graduate of Bucknell University (BA) and the Sloan School of Management at the Massachusetts Institute of Technology (MA). He worked as an economist at the New Jersey Department of Environmental Protection before retiring.

Bill was a skilled folk dancer of English Country and international traditions; he sang in choruses and small groups,especially Shape-note and Renaissance works, in addition to great classics of choral music. Bill read voraciously particularly about history, religion and science.

He is survived by his wife Judith Klotz,a brother-in-law Robert Klotz,a sister-in-law Deborah Lamb,two nieces Lillian Klotz Foster and Natalie Klotz,a nephew Adam Klotz.

Funeral services and burial are private at Ewing Cemetery.

The family respectfully requests memorial contributions to the Environmental Defense Fund (