Holocaust Memorial and Tolerance Center of Nassau County
The Holocaust Memorial and Tolerance Center of Nassau County is a Holocaust memorial, a museum and a tolerance center in Glen Cove, on the North Shore of Long Island in New York State. The museum and tolerance center is situated within the original Gold Coast Mansion "Welwyn", in what is now Welwyn Preserve County Park. The memorial also includes the adjoining garden, which was originally designed by the Olmsted Brothers, the influential American landscape architectural firm. As of 2014, the museum is open on Mondays to Fridays from 10:00 am to 4:30  pm, and on Saturdays and Sundays from 12:00 pm to 6:00 pm. History. The museum part of the memorial is housed in the estate's original Georgian-style mansion, "Welwyn", which was built in 1913, and which was designed by Delano & Aldrich. Welwyn was part of the estate of Harold Irving Pratt, an American oil industrialist and philanthropist who was born in 1877, and died at Glen Cove in 1939. Harold's wife left the Welwyn estate to Nassau County when she died in 1969. The mansion was neglected for approximately 30 years, during which time for a ten-year  period it was used for training staff for the Nassau Sheriff's Department. In 1992, the museum was founded by Boris Chartan, a Holocaust survivor, who was part of a group then called the Holocaust Commission. Chartan's intention was not simply to teach the history of the Holocaust, but to educate people about the shortcomings of all kinds of hatred, prejudice, and intolerance, including antisemitism, racism, and bullying.