Frances Anna Blandy (1837–1874)
Frances Anna Thomson (1874–1882)
Née Blandy. Lived on Madeira with her family. Married William Thomson (the future Lord Kelvin) as his second wife in 1874.
Madeira, Portugal, baptism index, 1538–1911 (Ancestry.com, accessed 9 April 2019)
ODNB s.v. Thomson, William (1824–1907).