HCR diary 14.4.1820 Mrs Brown wife of Ipswich architect "very agreeable young woman - sensible without pretension, frank and easy without obtrusive egotism, respectful without obsequiousness. She brought her two little girls with her and was no restraint on our conversation"
William Brown architect of Ipswich 1778-1851 (Colvin). His father was Crispin Brown shoemaker of Mendham, Suffolk. He married Harriet Jermyn at Ipswich in 1810, they baptised children there (Harriet Jermyn 1813, Marianne Layton 1815, Isabella 1816, Ellen 1818, William 1820, Margaret Latitia 1823, Rose Emma 1826). In the 1841 census William Brown architect age 62 born Suffolk was a patient at Belle Vue Lunatic Asylum, Ipswich. Harriet's daughter Margaret Laetitia married Francis Landon, solicitor in 1847 and Harriet died in 1848. (some info from an Ancestry user-submitted tree)