The first mention of Henry Brenwasser in the NYC Directories that I can find is 1909. He’s listed as a druggist with the 226 Ninth Avenue address. Around this time he went into business with Frank N Pond.
The business of Pond & Brenwasser (Frank N Pond & Henry Brenwasser) is listed in the Trow NYC Copartnership and Corporation Directories from 1908 to 1914 at 226 Ninth Avenue. The business is not listed in the 1906 Copartnership and Corporation Directory and the 1914 Directory states that Pond and Brenwasser was dissolved.
Later Brenwasser appears to have gotten out of the retail drug business. According to the February 3, 1913 issue of Industrial World and an issue of the Paint, Oil and Drug Review from around the same time, Brenwasser was an incorporator in a new corporation called Glycola Co, Inc. The company was listed as “chemists, dry salters, oil and color men. Capital $75,000. Incorporators: Jeheil H Patrick, 333 Ninth Avenue, Furman K Ruff MD, 343 W 23rd St and Henry Brenwasser, 226 Ninth Avenue. The 1915 – 1916 Directory of Directors in the City of New York list Brenwasser as the Secretary and Director of the Company and it’s still located at 226 Ninth Avenue. The company is not listed in the 1918-1919 Copartnership and Corporation Directory and appears to be out of business by then.
After Glycola, it looks like Brenwasser got back into the prescription drug business. In the 1921 and 1922 editions of the ERA Druggist Directory of the US, Canada, Cuba, Puerto Rico, Manila and the Hawaiian Islands Henry Brenwasser (No Pond) is listed at the Ninth Avenue address. He’s not listed in the 1916 edition.
It appears that Brenwasser was at the Ninth Avenue address from 1908 well into the 1920’s. Frank N Pond also maintained other businesses associated with the 226 Ninth Avenue address before (Pond & Bowes), during (Pond Pharmacal Co.) and after (Pond Prescription Pharmacy) the Pond & Brenwasser era of 1908 to 1912. It’s not clear whether Pond and Brenwasser remained associates or not but it appears they shared the building or at least the address until at least 1916. There appears to be no connection with the more famous Pond’s Extract Co.
Today 226 Ninth Avenue no longer exists. The location is now part of a large apartment complex.
The bottle I found is a small (3 oz) mouth blown medicine bottle with a tooled finish. Embossing on the base indicates it was made by Whitehall Tatum Company (W.T. Co). The fact that there’s no ampersand (between the T and Co) indicates it was made after the business incorporated in 1901. This fits with either the 1908 to 1912 period of Pond and Brenwasser or the post 1916 years, after Glycola, when he apparently went back to being a pharmacist. The fact that that Henry Brenwasser’s name is embossed on the bottle, not Pond and Brenwasser, has me leaning toward the later period.