Susan P. Greenstein of Manchester, formerly of the Bronx, died Dec. 7.

Before retiring in 2002, she was a teacher at Junior High School 135 in the Bronx for almost 25 years and was active in the United Teachers Federation, where she was a union representative.

She is survived by her children, Stewart of Yonkers, N.Y., and Michele Greenstein (Paul Coviello) of Washington, D.C.; and grandchildren, Peter and Julia.

Donations can be made to www.hopkinsmedicine.org/support directed to Dr. David Cosgrove or www.cholangiocarcinoma.org. Arrangements were by Gutterman and Musicant Jewish Funeral Directors, Hackensack.