Bonnieview- Owned by the Warner/Balttazzi Families (circa 1870-1912)

Samuel Adams Warner (1822-1897) was a prominent architect who practiced in New York City from 1864 until his death in 1897. Warner was the architect of the Marble Collegiate Church at 29th Street and Fifth Avenue, New York City, and public buildings as far away as Texas, Louisiana and South Carolina. He also designed many commercial buildings in New York City, a number of which still stand in the Soho Cast-Iron District.

Around 1870, Warner purchased a 32-acre property in Roslyn for his daughter Emma, who had married a Turkish diplomate Xenophon Baltazzi. The property was located on the east end of the road that was named in his honor- Warner Avenue.

On this property, Warner designed a large house named Bonnieview, a caretaker's cottage and a barn. The name was derived from the great view of Hempstead Harbor from the north side of the property. The caretaker’s cottage (Samuel Adams Warner Cottage) was built in the Swiss Chalet Style and still stands today as the Vienna restaurant.

The only known photo of Bonnieview (circa 1885). Courtesy of the Bryant Library Local History Collection.

1873 Beers, Comstock & Cline Map

Xenophen Baltazzi was an Ottoman Greek born in Smyrna. He came from a wealthy family who founded the banking firm of Baltazzi Brothers of Constantinople, Turkey. He first served in the diplomatic service for Turkey as First Secretary in Washington D.C., where he married Emma Elizabeth Warner. He later became the Consul General for Turkey based in New York and used Bonnieview as his embassy headquarters.

Xenophen Baltazzi died in Roslyn in 1895. Emma continued to live in Bonnieview until before moving to France in 1910.

The property was sold to Stuart Hirschman of Manhattan in 1910.

1906 Belcher Hyde Map

Solomon and Bella Rosenbaum

The 32-acre property was purchased by Solomon and Bella Rosenbaum in 1912. Solomon Guedalia Rosenbaum (1868-1937) was born in Raleigh, North Carolina, to Morris and Frances Brasch Rosenbaum. His father, Morris Rosenbaum, had previously operated a successful dry-goods store when the family moved to North Carolina from California, where they were early settlers.

In 1884 Sol moved to New York with his family at the age of sixteen. A family venture, National Cloak & Suit Company was formed in 1888 with the help of his father and brothers when Solomon was just twenty years old.

The company’s 11-story headquarters was located on 24th Street and 7th Avenue. In 1904, Solomon became president of the National Cloak & Suit Company. With growing success, in 1920, National Cloak & Suit Company constructed a 600,000 square feet manufacturing plant in Kansas City, Missouri.

Under Rosenbaum’s leadership, the company grew and prospered and became the third leading mail order company in the US, trailing only Montgomery Ward and Sears Roebuck & Company. After he retired in December 1925, the company merged with Bellas Hess & Company in 1927.

Rosenbaum was a charitable individual. He was on the board of many philanthropic organizations including being the president and trustee for the Baron de Hirsch Fund. He also helped to establish the Federation for the Support of Jewish Philanthropic Societies and was an avid supporter and trustee of several hospitals including being president of Montefiore Hospital. At the time of his retirement, Rosenbaum was highly active on the boards of several charitable foundations. He died on December 26, 1937, at the age of 69 from heart disease.

•Source: Registration Form for the National Cloak & Suit Company Building in Kansas City

Three generations of the Rosenbaum Family (circa 1935). From left to right: Francis Fels Rosenbaum, Jr., Solomon Rosenbaum and Francis Fels Rosenbaum

Photo courtesy of the Rosenbaum Family

National Cloak & Suit Co. 1907 Catalog

The National Cloak & Suit Company buildings still standing today. Top: New York City. Bottom: Kansas City, Missouri

Belrose-The Roslyn Home of Solomon and Bella Rosenbaum (1912-1940)

The 32-acre property was purchased in 1912 by Solomon and his wife Bella Rosenbaum. Baltazzi’s Bonnieview was taken down and replaced by a large mansion named Belrose for Bella Rosenbaum.

Belrose was a four-story brick colonial building with formal gardens, landscaped lawns and a terrace with views of Hempstead Harbor. It was owned by the Rosenbaum family for 28 years.

1920 Sanborn Insurance Map showing Belrose and the caretaker's cottage.

1926 Aerial

1932 Hagstrom Map

Belrose- Photos courtesy of the Rosenbaum Family

Document courtesy of the Bryant Library Local History Collection

Roslyn Park Hospital (1946-1960)

In 1940, the mansion and eight acres were sold by the Rosenbaum family to Dr. Louis S. Bardoly for use as a hospital. Several acres of the property were sold in 1945, which would be developed into the garden apartments on Edwards Street.

Dr. Louis S. Bardoly (1894-1969) was a native of Hungary and emigrated to the United States in the 1920s. He had a medical practice in Cleveland, Ohio before coming to Roslyn. He also wrote and produced several Broadway plays including Case History (1938), Strange Story (1956), The Magnificent Hugo (1961) and The Sunday Man (1964).

After purchasing Belrose and eight acres in December 1940, public hearings were held concerning the hospital for almost six years. Dr. Bardoly finally opened the 50-bed and 12-bassinet general hospital on September 7, 1946. In 1950, the hospital was modernized with a $250,000 addition.

1950 Aerial of the Roslyn Park Hospital, the Garden Street Apartments and the Caretaker's Cottage.

Long Island Doctors Hospital (1961-1973)

In 1960, a group of North Shore physicians purchased the Roslyn Park Hospital and renamed it the Long Island Doctors Hospital. Following another modernization, the hospital opened on October 29, 1961. The hospital closed in 1973 and the building was demolished in May 1973.

Bottom photo shows the Long Island Doctors Hospital, the original Belrose mansion, being taken down on May 10, 1973.

Photos courtesy of the Bryant Library Local History Collection

SunHarbor Manor (1974-Current)

In the fall of 1974, the Sunharbor Manorhealth facility was built on the property by Gerald Osinoff of Woodbury Nursing Home. The building was designed by Great Neck architect Michael Spector. The facility originally had 90 private and 68 semi-private rooms, The goal was to “enable each resident and patient to resume and maintain the activities of daily living, along with a strong emphasis on healthcare.”

Then & Now