Willie's first wife who died young aged 36.
According to her death certificate, Fanny died of smallpox on the hospital ship Atlas , moored in the Thames
As the Family Tree shows, in addition to Harry and Nan there was also young Elizabeth Fanny who died in 1802 aged 12, and Cissy born in 1899
Some of the below facts were found on rootschat.com.
In the 1881 Census we see Fanny living with her parents at 7 Betterton Street., aged 15. At 23 Fanny married Willie on 5th May 1889 in the Parish of St. Giles in the Field
Lastly they had a second daughter Frides Adelaide Annie born 12th July 1892 (known as Nan, see above).More on Hospital Ships...
The certificate also tells us Fanny had been vaccinated but only as a child. She died from it much later, at age 37
The Great Smallpox Pandemic of 1870 to 1875 was the last major smallpox epidemic to reach pandemic level across Europe. The outbreak has its origins in the Franco-Prussian War of 1870 to 1871, where unvaccinated French prisoners of war infected the German civilian population, before the virus then spread to all corners of Europe.