SaskeHealth
William George Mason, born July 20 1903, Alma, Saskatchewan
Mother Elizabeth Ida Ellis
Father David Charles Mason
[The former village of Lake Alma has a population of about 30 and is about 80 kilometres west of Estevan and about 15 kilometres north of the US border

In the 1906 Prairie census Section 18, Township 7, Range 8, west meridian, Stoughton Post Office, Sub district 10, Qu’appelle district, Saskatchewan
[This section is 6 - 7 miles south of Stoughton and 2 - 3 miles west of Highway 47.]
Head David C. Mason, age 27, born Quebec, 6 horses, 2 milk cows, 6 other cattle, 4 hogs
Mrs David C. Mason, age 23, born Ontario
Son George Mason, age 3, born Saskatchewan
Son Harold Mason, age 1, born Saskatchewan]

In the 1921 Canada census Fruitvale Post Office, Trail Electoral district, Kootenay West district, British Columbia
Head David Charles Mason, age 43, born Quebec,, father born England, mother born Quebec, racial origin English, farmer - own farm
Wife Elizabeth A. Mason, age 40, born Ontario, parents born Ontario, racial origin Scotch
Son William G. Mason, single, age 17, born Saskatchewan, labourer - railroad
Son Harold J. Mason, single, age 16, born Saskatchewan, labourer - railroad
Son David C. Mason, age 13, born Saskatchewan, student
Daughter Anna G. Mason, age 11, born Saskatchewan, student
Son Gilbert I Mason, age 9, born B.C.
Daughter Alice Mason, age 8, born B.C.
Daughter Bertha M. Mason, age 6, born B.C.
Daughter Elizabeth I. Mason, age 5, born B.C.