I'm wondering if the mother's name was Isabel Philips because there is this family near Roblin in the 1906 census. Everyone is born in Ontario except where noted. Living at 24-28-29-W1.
2 304 Irvine John Head M M 43
3 304 Irvine Isabella Wife F M 35
4 304 Irvine Stanley Son M S 14
5 304 Irvine Thomas Son M S 10
6 304 Irvine James Son M S 8
7 304 Irvine May Daughter F S 5, b. USA, entered Canada 1903
8 304 Irvine Wright Son M S 1, b. MB
1906 Census Page Data
District: MB Marquette District (#5)
Subdistrict: 18 A (Townships 23, 24, 25, 26, 27, 28 in ranges 26, 27, 28, 29 west) Page 29
Details: Schedule 1 Microfilm T-183551906 C

there is a birth registration for Wright in MB Vital Stats but his mother's name is Isabel Philips.
LAST NAME: Irvine
FIRST NAME: Wright ALEXANDER
DATE OF BIRTH: 18/07/1905
PLACE OF BIRTH: Roblin SEX: MALE
REGISTRATION NUMBER: 1905,25025400
REGISTRATION DATE: 22/06/1970

It looks like Stanley and Thomas Irvine served in WW I giving their father, John Irvine an address of Duck Mountain, MB.