There is a marriage registration 006582-98 dated 1 Jun 1898 at Minden Ontario for James D Nesbitt (s/o James Nesbitt & Margreta Little) and Isabella Baine (d/o Duncan Baine and Rebecca Bell) given here: http://homepages.rootsweb.ancestry.com/~maryc/halib98.htm
According to family search, an Albert Duncan Nesbitt was born in Minden, Haliburton, Ontario on 15 Oct 1899 Link:https://familysearch.org/pal:/MM9.1.1/FM4J-ZRH
Census 1901 at Minden, ON we Find David and Isabella Nesbitt with son Albert D: http://www.bac-lac.gc.ca/eng/census/1901/Pages/item.aspx?itemid=2998234
An Alice May Nesbitt was born 16 Jan 1902 also at Minden : https://familysearch.org/pal:/MM9.1.1/KZ1D-JJ4
Census 1906 in Assiniboia East, SK there is James D., Isabellam Albert D., Alice M., and Violet B. : http://www.bac-lac.gc.ca/eng/census/1906/Pages/item.aspx?itemid=536465
There is an Isabella Nesbitt with husband James D. Nesbitt and children Albert Duncan, Alice May, Violet Beatrice(?), James David, and Mina (often short for Jemima or Jemina) living in Assiniboia, Saskatchewan (T8 R32 W1) in Census 1911. http://www.bac-lac.gc.ca/eng/census/1911/Pages/item.aspx?itemid=7723506
According to another familysearch collection a number of Nesbit's crossed the border at Baudette Minnesota in Jan 1913. They Include James David (b. Port Hope, ON), Isabel (b.Monmouth, ON), Albert Duncan (b. Haliburton, ON) Alice May (b.Haliburton, ON), Violet Beatrice(b.Haliburton, ON), James David (b. Parkman, SK), Mina Solome(b. Parkman, SK) and finally May Isabel (b. ~ Aug 1912, Parkman, SK) The link to the record for Isabel is: https://familysearch.org/pal:/MM9.1.1/XG5P-XPD
An Albert D. Nesbitt is living in the Dinnison household at Erie PA in Census 1920: https://familysearch.org/pal:/MM9.1.1/M6TY-6LP
In the following 1923 marriage record for Albert Duncan, it indicates that James D. is living in Ontario and Mother Isabella Bain is given as deceased. Link: https://familysearch.org/pal:/MM9.1.1/VFQG-V39
An Albert D. Nesbitt died 17 Aug 1988 in Midland, Michigan. Link: https://familysearch.org/pal:/MM9.1.1/JGZ1-JY4
These records indicate Isabella died between 1913 and 1923, likely in northern U.S.
Hope this helps...