Johanna Loewenthal was born [circa] 1835 at Schneidemühl in the Province of Posen, in what was then Prussia.
On 6 May 1856 she married Isidore Simonstein, who was also a resident of Schneidemühl. In Schneidemühl, Johanna gave birth to Hulda (1857), Henrietta (1859) and Morris (1862).
Isidore came to Australia aboard the Dora and arrived in Sydney on 8 May 1865. Only he is mentioned in shipping records.
Johanna and the children arrived later, before the birth of their son Marcus, who was born in Grafton, New South Wales, in 1869. Joseph (1872) and Eva (1875) were later born in Sydney.
Four of Johanna's siblings also came to Australia. A sister, Hulda, remained in Schneidemühl, probably with her parents.
Isidore's siblings and parents remained in Schneidemühl.
Johanna died on 10 March 1897. She had been admitted to the Sydney Hospital to undergo an operation for cancer in the jaw and, while walking on the verandah of the hospital, she either threw herself from the balcony or fell to the ground, a distance of 20ft. At the inquest into her death, evidence was given that deceased had expressed the intention of committing suicide.
Isidore died in Sydney on 29 May 1905.
Originally published at https://oa.anu.edu.au/obituary/simonstein-johanna-14005