In 1881, Marie Sarah Fairbairn married Arthur Wills.
Marriage notice: "WILLS - FAIRBAIRN. On the 21st ult., at Trinity Church, by the Rev. Mr. Wollaston, Arthur, eldest son of the late Thomas Wills, Willsmere, Kew, to Marie Sarah, only daughter of the late John Hardie Fairbairn and Madame Marie Fairbairn, Grey-street, East Melbourne, and granddaughter of the late Cristophor Lewens, Esq., St. Pauly by Hamburg, Germany. 
↑ Victorian marriage registration 1881: 04547,F,Fairbairn,Marie Sarah,Wills,Arthur,Ballan,
1881: 04547,M,Wills,Arthur,Fairbairn,Marie Sarah,London,
↑ Trove: Marr. 21 Dec 1881 Arthur eldest s/o late Thomas WILLS (Willsmere, Kew) to Marie Sarah only d/o late John Hardie & Madame Marie FAIRBAIRN, Trinity Ch, (Melbourne), from Family Notices (1882, January 14). The Australasian Sketcher with Pen and Pencil (Melbourne, Vic. : 1873 - 1889), p. 15 online at http://nla.gov.au/nla.news-article60621161
↑ Victorian death registration 1947: 10381,,Wills,Marie,Fairbairn John,Lewens Marie,Kew,86,