Some information on the German tennis-playing Weihermann sisters, all of whom were born in Frankfurt. They were the daughters of Siegmund Weihermann and Ida Scheidt, natives of Kitzingen and Frankfurt respectively. There were four daughters. The eldest, Lotte (b. 1891) does not appear to have played tennis, at least not competitively. She was a medical doctor by profession and spent most of her life living and working in England.
The next daughter, Ilse (b. 1893), was the top German tennis player of the early to mid-1920s. Her husband's name was either Karl or Erich. They had one child, a boy, who died age 12 (circa 1931); they separated afterwards. Circa 1938 Ilse Friedleben and her mother left Germany to live in London, where Ilse worked a tennis coach for a time.
The third daughter, Toni (b. 1895), also played competitive tennis and taught the sport too. She married a businessman, Paul Richter. He ran an export business in Trinidad. Toni is probably the Frau Richter mentioned in some Continental tennis results in the late 1920s/early 1930s.
The fourth daughter, Anna (b. 1897), also played tennis competitively and was a tennis teacher too. She married twice. With her first husband she had two children, with whom she later emigrated to the United States where she married her second husband.
It appears that the Weihermanns were Jewish, so it is probably not surprising that the daughters and their mother ended up living outside Germany.
Born 2 September 1893
Died circa 1960
Married Karl (or Erich) Friedleben, 30 April 1919, separated circa 1931
Born 11 September 1895
Married Paul Richter
Born 23 August 1897
Married (1) Karl Hemp, 10 January 1921, divorced
Married (2)  Verity
Source (in English): http://www.rijo.homepage.t-online.de...u_sky10104.pdf