[3][4][5] In spring 1925, Lilian, F. A. Mitchell-Hedges and amateur archaeologist Thomas Gann travelled to the Mayan ruins at Lubaantun in British Honduras (today known as Belize).
[7] Lady Richmond Brown wrote several articles for magazines and newspapers and, in 1924, published one book, In Unknown Tribes: Uncharted Seas detailing her adventures in the Caribbean and Panama.
[10] The wedding took place at the register office at Christchurch, Hampshire and they lived for a time at White Rock, in Brockenhurst.
In May 1910, her husband's affairs were place under the control of a guardian, Sir Melville's younger brother Frederick, due to his "lunacy.
[7] Lady Richmond Brown died on October 4, 1946, after several months' illness, at Lodge Playdon, near Rye, Sussex.