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The Women’s Association for Morristown Medical Center today announced that its 19th Mansion in May signature fundraiser previously scheduled to be held during May 2020 will now be open to the public as its “Splendor in September” Designer Showhouse and Gardens at Tyvan Hill in New Vernon, New Jersey from September 8 to October 4, 2020.

“We are thrilled that the owner of Tyvan Hill has graciously agreed to extend our stay at Tyvan Hill, which will enable us to present our Mansion in May 2020 “Splendor in September” fundraiser and deliver on our pledge to benefit the expansion of the Gagnon Cardiovascular Institute at Morristown Medical Center,” said Patricia O’Connor, Co-Chair, Mansion in May 2020.

Kathy Ross, Co-Chair, Mansion in May 2020 stated, “The number one concern has and continues to be the health and safety of the over 1,500 volunteers and our visitors who help make Mansion in May a success. Our delayed opening will enable our visitors to tour this magnificent country estate and have an opportunity to see the ‘inspirations’ of over 50 talented interior and landscape designers come to life in one lovely setting.”

Tyvan Hill, a 10,000 square foot U-shaped brick and stone house mansion was designed by the prominent New York architectural firm of Peabody, Wilson & Brown for John Wesley Castles Jr. and his wife, Dorothea Bradford Smith, and built between 1928 and 1929. It features beautiful details, such as a curved staircase, paneling and elegant moldings, as well as an outdoor pool and pool house. In 1931, the Architectural League of New York awarded its silver medal to Peabody, Wilson & Brown for the firm's designs of a group of country residences, prominently including Tyvan Hill.

Mansion in May is the preeminent designer showhouse in the New Jersey-New York area. “Splendor in September” at Tyvan Hill will be open to the public from September 8 to October 4, 2020. Advance tickets at $40 are available online now. For tickets and more information about Mansion in May 2020, visit


Founded in March 1893 to provide financial support to Morristown Medical Center, part of the Atlantic Health System, the Women’s Association for Morristown Medical Center (WAMMC) helps enable the hospital to respond to the changing healthcare needs of the community. With a volunteer base of more than 400 members, WAMMC hosts a number of fundraising events, anchored by the flagship event, Mansion in May Designer Showhouse and Gardens. WAMMC also operates the hospital’s gift shops and The Bargain Box Thrift Boutique, as well as WAMMC Network TV, which created Calling All Kids and is the first in-house family television station for young patients and their families to enjoy during their stay at the hospital. WAMMC is an integral part of the hospital’s ability to continue bringing cutting-edge technology and superior health services to the community, and has raised more than $25 million to date to support this mission. For more information about WAMMC, visit

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