I would seem Nellie is not the daughter of Thomas and Julie Lowes but a grand daughter. Since I don’t know how she fits in she is entered in the data base as their daughter. The question then is who is her Lowes parent. The possibilities seem to be John Lowes, Stephen Lowes, Jennie Lowes or possibly Ethel. Her mother is not likely to be Ellen (Nellie) who died likely a year or 2 before Nellie was born.

In the Canadian 1921 census Section 1, Township 7, Range 6 West of the 3rd Meridian, Sub District 27, Wood River Municipality, Maple Creek, Saskatchewan. This is near Woodrow, Saskatchewan close to Lafleche and Assiniboia.
Head Thomas A. Lowes, age 49, born England, parents born in England, immigrated 1891, farmer.
Wife Julia Lowes, age 44, born Ontario, parents born in England.
Son Stephen Lowes, age 22, born England, father born in England, mother born in Ontario, immigrated 1903, worker, farmer.
Daughter Ethel Lowes, age 16, born Manitoba.
Daughter Ruby Lowes, age 12, born Saskatchewan.
Daughter Edith Lowes, age 9, born Saskatchewan.
Son Charles Lowes, age 7, born Saskatchewan.
Son Allan Lowes, age 5, born Saskatchewan.
Daughter Olive Lowes, age 3, born Saskatchewan
Daughter Nellie Lowes, age 2, born Saskatchewan.

In the 1926 Canadian census of Manitoba, Saskatchewan and Alberta
Section 33, Township 7, Range 6 West of the 3rd meridian, municipality of Wood River, Willow Bunch District, Saskatchewan
Head Thomas Lowes, age 54, born England, parents born England, immigrated 1891
Wife Julia Lowes, age 48, born Ontario, parents born England
Son John Lowes, single, age 29, born England, immigrated 1905
Son [added later] Stephen Lowes, single but crossed out, age looks like 17 but should be 27 but crossed out, born England, immigrated 1913
Daughter Ethel Lowes, single, age 21, born Saskatchewan
Daughter Ruby Lowes, single, age 17, born Saskatchewan
Daughter Edith Lowes, single, age 13, born Saskatchewan
Son Charlie Lowes, age 11, born Saskatchewan
Son Allan Lowes, age 9, born Saskatchewan
Daughter Olive Lowes, age 8, born Saskatchewan
Daughter [but it looks like gr or gd is added in front later, could she be a grand daughter?] Nellie Lowes, age 7, born Saskatchewan.
Son Thomas Lowes, age 4, born Saskatchewan
Laborer John Morrow, single, age 21, born Ireland, parents born Ireland, immigrated 1924
[Stephen Lowes is listed twice, once with his parents and once with his wife]

1931 Canada Census Saskatchewan, Willow Bunch district, subdistrict 59
Section 33 Township 7, Range 6, West of the 3rd Meridian
Rented their home, $10.00 a month rent, single story, wood, 4 rooms, no radio
Head Thomas Lowes, age 59, born England, parents born England, immigrated 1890, nationality Canada, racial origin English, Church of England, farmer, grain farmer
Wife Julia Lowes, age 54, born Ontario, parents born England, homemaker
Son Allen Lowes, age 15, born Saskatchewan, student
Daughter Olive Lowes, age 14, born Saskatchewan, student
G Daughter Nellie Lowes, age 12, born Saskatchewan, student
Son Thomas Lowes, age 9, born Saskatchewan