I don't thing the Brantford Canada Joseph Chandler is your guy...
WWI Attestation Papers Chandler Joseph James John Brantford, Ont. Canada Born: London, England Father: Joseph Chandler Brantford, Ont. Canada born Sept 9th, 1899 trader or calling: Knitter Not married belongs to active militia: 38th Dufferin Rifles 1 year Cadets July 24, 1916
On the 1921 Census of Canada, the same Joseph appears with his family (as in 1911), still in Brantford, Ontario
This record appears to be for the same man listed above - which by circumstances rules out your Joseph if he was living in California from 1926 on…
Border Crossings: From U.S. to Canada, 1908-1935 about Joseph S Chandler Name: Joseph S Chandler Age: 29 Estimated birth year: abt 1900 Arrival Port: Niagara Falls, Ontario Date of Arrival: 30 Aug 1929 Birth Location: London, England Gender: Male Citizenship: British Chandler Joseph S, 29, m, From Arizona, London England, British, England, previously in Canada 1906-1918 Brantford, Episcopalian, surveyor, Parents, Mr & Mrs J Chantler, 59 Grand River Ave, Brantford Chandler, Wm Jos. 9 months, Douglas, Arizona, baby, Grandparents
(this man, and his baby had been living in Arizona before returning to Brantford, Canada)
He also appears here Border Crossings from Canada to U.S. Port of Eastport, Idaho July 28, 1930 CHANDLER, Joseph Samuel Accompanied by no one age: 29, male Surveyor Place of Birth: London, England Nationality: Canada, Race: English Last permanent residence: Ontario, Brantford Destination: Vancouver, B.C. Passage paid by Walking hi way Ever in U.S. Yes from 1925-1926 Ariz. Relative or Friend: no one In transit 3-4 days Wife: Lois Chandler, Cranbrook, B.C. Montreal, 1907, Dominion Niagra Falls, 1926, Auto