The family writes --
Gertrude F. Greifinger died peacefully at home in South Orange on August 2, 2017. At 97 years of age, she lived independently with her identical twin, Rosalie Berger. Her three sons, Robert, David, and Richard Greifinger and her twin, Rosalie Berger and her two children, Robert and Barbara Berger, survive her, as do the twins’ ten grandchildren and two great grandchildren.
Gertrude was beloved by her extensive family and many friends. She was a native of New Britain, Connecticut. She met and married Dr. William Greifinger, a specialist in internal medicine, who practiced medicine in Essex County. Gertrude moved to Newark in 1944 and then to South Orange in 1958 with her husband and three children. She served in a variety of capacities at Congregation Oheb Shalom and the South Orange Public Library, among others.