The census of 30th March 1851 shows the following people resident at #6 "Farnham House" on the Island of Jersey in the town and Parish of St Heliers:
That is three generations of ladies, being:
Elizabeth RICHARDSON Head of the household a 72 year old (date of birth +/- 1779) annuitant who was born in York and listed as Head of the household, her daughter
Mary NAEGUELI, a 45 year old (date of birth +/- 1806) annuitant who was born in Yeldham, and
Wilhelmina NAEGUELI a 21 year old (date of birth +/- 1830) native of Switzerland and granddaughter of Elizabeth.
Wilhelmina was to journey to New South Wales, it would seem with her mother Mary. Wilhelmina would meet and marry Richard Rupert EWEN.
There is a death notice in the SMH of 23 November 1866. October 29 at her residence (making her just 60 years old), No2 Hyde Park terrace, Mary, relict of the late Colonel Frederick Naegueli of Bern Switzerland, and daughter of the late Reverend Alexander Richardson D.D., Rector of Dunmow and Headmaster of the Royal Foundation Grammar School, Dedham, Essex.
There was a death notice in the Richmond and Windsor gazette of 30 May 1903:
The death is announced of Mdlle Mary Naegueli , professor of music and languages. Mdlle Naegueli for some years resided in Windsor, but the last five or six years of her life were spent at Parramatta.
There is a headstone in Rookwood cemetery Section T Row 5 in the old Church of England section as follows:
Mary Naegueli died 23 May 1903 at Harris Park.
"Erected by her friends"
This would appear to be another daughter of Mary and Frederick Naegueli, and sister to the wife of Richard Rupert Ewen (Wilhelmine Elisa Mary)
The Sydney Morning Herald of 1855 has two advertisement which suggest that Mary (a pupil of Bochsa) and her daughters Wilhelmine and Mary (pupils of Madam Ronchetti and Signor Virchellini) ran a school for teaching flower painting, the harp, languages, drawing and the pianoforte which was based around Hyde Park. In 1856 Wilhelmine married RR Ewen.
Bochsa appointed harpist to the Imperial Orchestra in 1813, began writing operas for the Opera-Comique. However, in 1817 he became entangled in counterfeiting, fraud, and forgery, and fled to London to avoid prosecution. He was convicted in absentia, and sentenced to twelve years hard labour and a fine of 4,000 francs.
The Sands Directory of 1869 lists, under schools, a Miss Marie Naegueli of Liverpool Street, Sydney. The Sands Directory of 1870 lists a
Naegueli, Madamesoille teacher of languages located at 2 Hyde Park Terrace.