Daniel Abraham

Actual name: Chaja Braina

Bertha was the eldest child of Abraham and Bassja* Datnoswky. She was born in November* of 1882 in Libau.

* The 1940 Certificate for Naturalisation for Palestine has her birth date as October 10 1882.

* Newly discovered birth certificate records Bertha's mother as "Gita"; it isn't clear if this was her mother's second name (Bassja Gita Rabinowitz) or if her mother was NOT Bassja, but another person altogether. Although nothing up until now had indicated that Abraham Datnowsky had been married twice, this would explain the significant gap between Bertha's birth and the birth of next sibling Ronya nine years later.

(data from: The Riga Rabbinate Vital Records)

Note: Dates are from the Julian calendar. Add 12 days to find the date on the Gregorian calendar(Western calendar). So the actual birthdate would be November 21, 1882.

Note that the mother's name appears as Gita Rabinowitch - and not as Bassja Rabinowitch. Does this indicate that Bassja's name was Gita Bassja? Or were these two different wives?

Bertha Datnowsky, 1897 or 1898

Bern University

Bertha ("Braina") appears on the third row of the register of the University of Bern.

Register from the University of Bern.

Click to see the full-size image.

(Retrieved from the University of Bern site.)

Revolution

Family lore has it that Bertha took part in the 1905 Russian Revolution, although it's not clear to me what her exact involvement was.

Marriage

Bertha married Israel Auerbach, a Berlin educator and active Zionist in December 1905.

I long assumed that Bertha and Israel had met in Berlin, as he was originally from there and I believed that she had studied there. However they may have met in Switzerland instead, since Bertha was registered at the University of Bern for the year 1903-1904, and Israel sent a postcard from Switzerland in 1904 to Bertha's sister Ronya where he mentions "his friend":

Postcard from Israel Auerbach to Ronya Datnowksy, 1904

To Ronja Datnowsky, Windau, Russland, from Baden Argovie, in Switzerland

Dear Mrs. Ronja!
Although we haven't met, I take the liberty to send you my regards. I hope to meet the dear brother and sisters of my friend [Bertha].
Respectful and kind regards to your parents.
Israel Auerbach

Later, in May 1905, Israel Auerbach gave a leather-bound notebook to Ronya for her birthday. He was then in Bern, as the following dedication indicates:

Seiner liebchen Ronya
zum geburtstag
von Israel Auerbach
auf der Reise nach Palastina, Bern, 8 Mai 1905

To dear Ronya
on your birthday
from Israel Auerbach
on his trip to Palestine, Bern, May 8 1905

(data from: The Riga Rabbinate Vital Records - Marriages in Libava/ Libau/ Liepaja in 1903, 1904, 1905.)

Note: All the dates are from the Julian calendar. Add 13 days to find the date on the Gregorian calendar(Western calendar) - so the marriage occured on December 24, 1905.

Berlin ?

Bertha and Israel probably moved to Germany after their marriage as their daughter Lea was born in Berlin in 1906.

Constantinople

Bertha and her family moved to Constantinople in 1908, following her husband Israel's assignment as local representative of the Hilfsverein in Constantinople.

In 1909, Bertha's mother Bassja died and she got her younger siblings to come stay with her in Constantinople.

Alex Mallat:

"There, Bertha invited her younger sisters Ronja and Eva (Liska) with the goal of marrying them to prominent ("de tres bon niveau") Sepharad Jews, together with Eva's twin Israel. It is thus that Ronja was introduced to the Bulgarian businessman Moritz Abraham, and Eva to Ascher Mallah, prior to 1913."

Bertha (2nd from left), with Ronya, Eva and Israel in Constantinople - 1909

Bertha, with Ronya, Eva and Israel in Constantinople - 1910

Berlin, Sevres

In 1914, Bertha and Lea went to Germany on vacation. The war then broke out. Because the conflict, it became impossible to travel and Israel and Bertha were separated for the entire duration of the war.

After the end of the war, Israel was finally able to leave Constantinople and travelled back to Berlin, where he was finally reunited with his family.

X, Ascher Mallah, nurse, Gisy, Elfriede (?), Uly, head nurse, X, Ronya (sitting), Bertha. Thuringia, 1922.

Front row: Medi, Tania (?), Ascher Mallah, Bertha.
Back row: Grischa Datnowsky, Gisy, Uly, Lea, Ronya.
Thuringia, 1922.

Bertha with Uriel Abraham, Berlin, 1928.

Bertha Datnowskly / Auerbach - Oil painting, Berlin.

The family resided in Berlin until 1932, then lived in Sevres on the outskirts of Paris.

Jerusalem.

After a short stay in Sevres, Bertha, Israel and Lea moved to Jerusalem in 1937.

Bertha

Bertha, Lisa Halle (?), Israel Auerbach.