380 & 382, Broadway, New York
Bamberger & Oppenheimer, Manufacturers of Umbrellas and Parasols, Nos. 380 and 382 Broadway.—An Important branch of industrial activity in the metropolis is that of the manufacture of umbrellas and parasols, and in this department of trade no firm has built up a higher reputation, and few have developed a larger and more widespread trade than that of Messrs. Bamberger and Oppenheimer. The business was founded in 1868. The co-partners are Messrs. Herman Bamberger and Max Oppenheimer, both gentlemen being very popular and highly respected in commercial circles, and possessing vast practical experience in their line of business. Their factory and salesrooms are located in the best wholesale section of Broadway, corner White and Walker Streets, and where they have in stock a complete assortment of all grades of umbrellas and parasols in the latest fashions, and embodying all the newest improvements, rendering them the best and cheapest goods in their lines upon the market. The firm has built up a trade of great magnitude, extending throughout this city and neighborhood, and all over the United States as well. To meet its requirements the house gives employment to upwards of two hundred hands, while it is represented to the trade by its own travelling salesmen. As skilled manufacturers of all the goods they handle, the co-partners have attained the best of reputations for their uniformly high standard of excellence, a great consideration with careful buyers. As a representative concern, the house of Messrs. Bamberger and Oppenheimer has long held a leading position in metropolitan trade circles, and deservedly so in view of the honorable business methods of the co-partners.
Source: New York's Great Industries - 1884
HERMAN BAMBERGER, Manufacturer of Umbrellas, Nos. 381–383 Broadway, Corner White Street.—One of the oldest and best known manufacturers of umbrellas is Mr. Herman Bamberger, whose establishment was founded thirty years ago by Messrs. Bamberger and Oppenheimer, the latter afterward retiring, and the firm later on became Bamberger & Obendorf. This firm was finally dissolved and Mr. Bamberger has since continued in the sole control. This gentleman was born in Germany, but has resided in New York the greater part of his life. He has been identified with the umbrella industry over thirty-two years, and is therefore thoroughly conversant with all its requirements. The premises occupied have dimensions of 50 x 120 feet, are appropriately fitted up, and employment is furnished a force of skilled hands. All kinds and varieties of umbrellas are made here, the goods being of the best class of workmanship, and the trade supplied extends to all parts of the United States.
Source: New York, 1894 Illustrated - 1894
DEATH OF VETERAN MANUFACTURER
In the passing of Herman Bamberger, whose death occurred June 1, after a short illness, the umbrella trade loses an honored member, who had been identified with the industry for sixty-three years.

Mr. Bamberger was born in Bavaria in 1838 and came to America at the age of seventeen. Like many of the young immigrants at that time he went \Vest and settled in Cincinnati, where he worked for a while in the wholesale dry goods house of Louis Stix & Co. From there he went to Mobile, Alabama, and Wilmington, N. C., but turning eastward again he located for a few years in Philadelphia, finding employment in the umbrella factory of Morris Heiter & Co., with whom he was connected until 1863. Returning to New York in that year, he organized the firm of Bamberger, Oppenheimer & Co., to manufacture umbrellas at 337 Broadway. A few years later the style changed to Bamberger, Oberdorfer & Co., and in 1890 Mr. Bamberger bought out his partners’ interests, continuing alone at 381 Broadway. Four years later he moved to 20 White street and continued there until 1915 when the business was incorporated as the Herman Bamberger Co. and moved to its present location on Broadway just north of Eighteenth street.
In 1911 Mr. Bamberger celebrated his fiftieth anniversary in the umbrella business and at the time of his death was the oldest manufacturer in this line. He was prominently identified with Hebrew organizations and took an active interest in various charities, including the Hebrew Orphan Asylum, of which he was a director. He leaves a widow and four children, two sons and two daughters, Alfred H., Robert, Mrs. Esther Rheinheimer and Mrs. Alice Mengas. Both sons are connected with the business, Alfred being treasurer and Robert secretary.
The funeral, held at his late residence in New York, was largely attended, including many of the umbrella manufacturers and dealers.
Source: Trunks, Leather Goods and Umbrellas - July 1920

Herman Bamberger Co. Inc. - New York - 1922
Herman Bamberger Co., Inc., manufacturers of parasols and umbrellas, have moved to 24 East Eighteenth Street. Formerly they were located at 867 Broadway.
Source: Dry Goods Economist - 4th March 1922
Trev.