Mrs Daniel Warner Marvin (Mary Graham Carmichael Farquharson) was born in Edinburgh, Scotland on 30 January 1894.

She was the only surviving child of Frank Farquharson (1860-1928), a carpenter, and Jessie Janet Davidson Carmichael (1866-1952), a dressmaker. Her father hailed from Aboyne, Aberdeenshire and her mother from Edinburgh and they were married around 1893.

She and her parents left Scotland from Glasgow on 21 April 1900 aboard the Anchor Line's City of Rome, travelling as second class passengers, and they settled in Manhattan, New York, appearing there on the 1905 and 1910 censuses. Her mother and her aunt, Margaret Graham Wheelock (née Carmichael) later established a successful modiste business, Farquharson & Wheelock at 23 West 57th Street, New York.

Mary was married in Manhattan on 8 January 1912 to Daniel Warner Marvin (b. 1894), the son of a motion picture production house founder. Their marriage was not filmed, but the ceremony was restaged for the camera on 12 March at the home of Mary's parents, 317 Riverside Drive. The London Daily Mirror reported it to be the very first wedding to be "cinematographed".

They later honeymooned in Europe, departing aboard Mauretania, and for their return to the USA they boarded the Titanic at Southampton as first class passengers (ticket number 113773 which cost £53, 2s). They occupied cabin D-30.

On the night of the sinking Daniel assisted his wife to a boat with the words "It's alright, little girl. You go. I will stay." Daniel died in the sinking and his body, if recovered, was never identified.

Upon her arrival in New York aboard Carpathia, realising all hope of her husband's rescue was now gone, she collapsed with grief. She later recuperated at the home of her parents. Perhaps unaware that she had been pregnant at the time of the sinking, she later gave birth to a daughter Mary Margaret "Peggy" (later Mrs Wheaton Kittredge) on 21 October 1912.

Mary was not single for long and began a courtship with Horace Silliman DeCamp (b. 22 October 1886), a native of Canastota, New York who was engaged in the lumber business and who was previously acquainted with Daniel Marvin and his family. The two met at her mother-in-law's holiday home at the Adirondacks and their engagement was announced in August 1913. The couple were wed on Christmas Day that same year at the Harlem Presbyterian Church, 5 West 125th Street, New York. They honeymooned in Egypt and upon their return to the USA lived in a newly purchased house in Great Neck, Long Island.

The couple were shown on the 1920-1940 census living in Manhattan but spent a great deal of time at their home in Old Forge, Herkimer, New York as well as being frequent travellers across the Atlantic. They went on to have two children: Julia Janet (1915-1983, later Mrs Bruce Wisner Winpenny) and Frank Graham (1920-2000) and in 1916 Horace adopted Mary's child from her first marriage. Mary was widowed a second time when Horace died on 14 July 1954.

Mary chose not to discuss the Titanic disaster as it upset her too much. She spent her last years living at 12 Birch Road in Thendara, Herkimer, New York but died in hospital on 17 October 1975 ¹ aged 81 and was buried with her husband in Riverview Cemetery, Old Forge, Herkimer. Her daughter from her first marriage, Mary, died on 7 October 1993 in Massachusetts.