Died in St Kilda, Vict, 14 May 1907,
In 1855, in Geelong, Katherine married a businessman, Richard Henry Bullock (c.1819-1890), and they had at least six children. The Bullocks moved to Horsham in c.1876 where Katherine's husband worked as manager of a fellmongery [dealer in skins and hides], official assignee and deputy-registrar of births and deaths, and a general commission agent.
Katherine collected MEL specimens at the Warrego River and Upper Darling River, NSW, 1885 (presumably visiting her son Philip Steel Bullock who also probably collected MEL specimens), and in the Wimmera, Vic., 1886.
Katherine died in 1907 in St Kilda.
Source: extracted from: Maroske, Sara and Vaughan, Alison (2014) 'Ferdinand Mueller's female plant collectors: a biographical register', Muelleria Vol.32 [consult for source references]