Border Crossing: Buffalo NY 3 Feb 1927
Harriet Gertrude Hudspeth, 47, social worker, b Lindsay Canada, going to Warsaw NY, going to join Warsaw Assn State Charities, time in US: permanent, she was 5'8", blue eyes, relative in Canada: Sister, Mrs W R Hitchins of Hamilton, Ontario.
Looks like she moved to the US.
Helen Wyndham Hudspeth, 27, father: Adam Hudspeth barrister, mother; Harriet Miles, married Duncan Henry Chisholm, barrister, 41, father: Chisholm Duncan, judge, mother, Mary Craig, 18 Nov 1908, Port Hope, witn: John D Chisholm of Ft William, Gertrude Hudspeth of Port Hope, by Rev Edwin Daniel, Port Hope, Registration # 014777.
Mary Hudspeth, 22, b Port Hope, living Lindsay, Adam Hudspeth & Harriet Miles, married Wm Henry Nightingale,43, b Quebec, living Hope Tp, teacher, W H Nightingale & Mary Orr, #104506, Durham County, 5 Jul 1905.
Katherine Crawford Hudspeth, 24, Adam & Harriet Hudspeth,married Wm Richmond Hitchins, 31, b Montreal, living Toronto, actuary, Thomas Martin Hitchins & Emily, 29 Oct 1900, Durham.
This would be the sister on Harriet's border crossing informaton.
If there were any children, they would be on 1911 census on www.automatedgenealogy.com
Adam was born 9 Sept 1877 according to Ancestry.ca
1901 census Montreal Quebec
Adam Hudspith, lodger, 9 Sep 1877, 23, bank clerk.
He is lodging with a Sidney & Clara Underwood. Looks like a small boarding house as there are a couple of lodgers.
1911 census Leeds County, Ont
Adam, head, Sep 1877, 33, b Ont
Murial M, wife, Apr 1877, 34, b Quebec
Miles H B, son, Jul 1908, 2 , b Ont
All information from Ancestry.ca
1911 census is the last one released. Try canada411.ca
Hudspath isn't that common a name.