There are these Kingdon's in 1906 census, but ages out, and not sure of correct transcriptions:
1906 Canada Census of Manitoba, Saskatchewan, and Alberta
Immigration Year: 1903
Province Saskatchewan District Assiniboia East
Sub-District Description Townships 18, 19, 20 in ranges 32, 33 west of the 1st M
Sub-District 34
John Kingdon 56
Elazabeth C Kingdon 53
John L Kingdon 23 son, possibly arrived 1900?
Census Place 34 Assiniboia East Saskatchewan Page 13 Family No 112