I have listed below a few corrections (and additions) to the article on the Währinger Friedhof.
I have also listed some corrections and additions in the Kommentar section of your additional blog “Tief betrauert von seiner Gattin …” etc. I hope you can arrange for the corrections to be made to the blogs themselves.

Corrections and additions:

• p.5. Rabbi S.S. Seelenfreund: was Av Bet Din in Rozhnovice (spelling) and after about 1840, in Kaschau/Kosice. Rozhnovice is very near Kosice, and Jews were not allowed to live in Kosice until 1840.
• P.5. Marie (not Maria) Seelenfreund – but she was generally known by her Jewish name which was Miriam.
• p.6. “Sohn”: Dr. jur. Nathan (Nachum) Birnbaum: The reason why they wrote Tarnow in the Geburtsbuch is presumably because Menachem Mendel Birnbaum left Ropczyce and went to Tarnow, where he met and married his wife Miriam, and soon went on to Wien.
• p.6. Rosa Korngut’s father was Ascher Salke (Saeke is a misreading of the wedding listing – it’s an “l”).
• p.9. “Nathan Birnbaum, der vor allem unter der Pseudonym Mathias Acher wirkte ….” Nathan B. did not use the pseudonym Mathias Acher all his life – only from about 1898 to about 1912 and during that time he quite often signed with his own name.
• p.9. My father Dr. Solomon/Salomo A. Birnbaum died in 1989 (not 1889) and is buried in Toronto, Canada (not New York).
• p.4. In addition to Solomon/Salomo Birnbaum’s pioneering work on Yiddish and Yiddish linguistics – which he taught at Hamburg University, then later at London University – he was the pioneer of Hebrew palaeography, which he also taught in London University. He wrote the first properly organized Yiddish Grammar in 1915 while in the Austrian army at the battle-front.