Royal Gazette, Fredericton, NB, 29 September 1841:
Died at Saint John on the 27th ult in hope of a joyful resurrection, Ann, wife of Robert Pengilly, in the 31st year of her age.
Morning News, Saint John, NB, 2 February 1847:
Married at Queensbury County of York on the 16th instant by the Rev. D. McCurdy, Mr. Robert Pengilly of St. John to Miss Mary Huestis daughter of Lewis Heustis Esq of the former place.
Warrants, Journals of the House of Assembly, New Brunswick:
To Mary Pengilly, late Mary Huestis, the sum of twenty pounds in full for her services as teacher to the 31st of December, 1850.
Mary Huestis and Robert Pengilly had five sons and one daughter. Their home in Saint John was destroyed in the Great Fire of 1877. By 1883, Mary Huestis Pengilly was living in Massachusetts. In October of that year, she was admitted to the Provincial Lunatic Asylum in Saint John. Her Diary Written in the Provincial Lunatic Asylum, self-published in 1885, refers to the election as Alderman of her son, Thomas M. Pengilly, and to his brother Lewis going "800 miles beyond Winnipeg surveying." For Valentine’s Day, 1884, the Saint John Globe published a list of 225 marriageable men, which included one Thomas Pengilly, "the most silent member of the Common Council board."
Daily Telegraph, Saint John, NB, August 5, 1893:
A Dubuque, Iowa despatch of the 3rd says: Mrs. Mary Huestis PENGILLY died at Mercy Hospital today and her remains will be forwarded to Boston on receipt of instructions from her son, a druggist there. She left the asylum, Saint John, N.B. nine years ago and thereafter travelled through the country selling poems which she said the angels had inspired, and her diary criticizing the management of the St. John asylum. She reached here two weeks ago and was adjudged insane, but being sick was sent to the hospital. – Deceased was well known in this city. Her son carried on a drug business in the city market building and was also a member of city council.
Mary Huestis Pengilly died in 1893 and is believed to be buried in the Huestis plot. Her father is buried in Section J with the Athertons.