机械工程师John F. Hennessy III是这位93岁的咨询工程师联合创始人的孙子，现在被称为Syska Hennessy Group，死于长期患病，于2月21日去世。他65岁。

In 1989 when he was 33, Hennessy took over as chairman and CEO of Syska & Hennessy Inc. after his father, John F. Hennessy Jr., died suddenly of a heart attack. He remained in that role until 2004, growing the firm into new markets in the U.S. and globally.

Calling him a “genuine fellow,” Cyrus Izzo, co-president of the 480-person Syska Hennessy Group, says Hennessy “installed a strong work ethic but did not take himself too seriously. He was very professional, but he knew how to have fun.”

Voice of Reason

轩尼诗（Hennessy）在9/11之后发出了理性的声音，这引发了关于是否应违反恐怖袭击的恐怖袭击，摧毁了下曼哈顿下城的世界贸易中心并损害了五角大楼的辩论。在纽约市建筑中心的一个公共论坛上，轩尼诗（Hennessy）在一个专家小组讨论建筑安全的小组中，回答了一个有关建筑法规是否足够的问题。他说：“建筑法规是基于概率而非可能性。”

在另一个场合，关于国土安全的主题，他说：“您必须定义要防御的威胁。新利luck第4页）。

轩尼诗是非常活跃的职业。200年0, he was the first chair of the new statewide consulting engineer group, now known as ACEC New York, which combined the state’s eight regions into one organization. “That was challenging,” to join the many voices of all the engineering disciplines into a collective voice, says Hannah O’Grady, senior vice president of ACEC New York.

O’Grady说，轩尼诗继续担任纽约ACEC大都会地区的主席，然后担任国家主席。他还主持了纽约大厦大会。

行业的身材

“He used his stature in the industry to help move industry organizations forward,” says Izzo.

Hennessy joined Syska in 1978, when the firm was 50 years old, and worked in its Los Angeles, San Francisco and New York City offices. When he took over as chairman, he had been senior vice president of business development and human resources. But he started out as a project mechanical engineer and worked on numerous buildings, including the Jacob Javits Convention Center in New York City.

John Hennessy III earned a B.A. in physics from Kenyon College, a B.S. in mechanical engineering from Rensselaer Polytechnic Institute, and an M.S. in management from MIT Sloan School of Management.

在他去世时，轩尼诗（Hennessy）是轩尼诗能源（Hennessy Energy）的执行伙伴。他还是救世军顾问委员会的公用事业公司的董事。

“John was amazing,” says O’Grady. “And he comes from a family with a tremendous history within design and construction in New York and beyond.”