Jos C McBride, aged 25y6mos, died of pthisis pneumonia 20 Aug 1890, born Benbrook, informant: Dr J G Scott.
Seaford Huron Registration # 007180.
That is the same doctor that was informant on Ellen McBride's death registration. Joseph is not on 1891 census with the rest of the family.
Joseph McBridge Sr died between 1881 and 1891 and he isn't on 1891 census. I didn't find any death registration for him on Ancestry.ca
Didn't find Thomas on 1901 census either in Canada or US.
Did not find any of them online buried in Maitland Cemetery although Sarah Jane's death rego says that is where she is buried.
Perhaps no headstones?
Would there be an obituary for her?