I'm not sure what else you need on them, but I see from a somewhat older post of your that Maude died in 918 an daughter Elva was adopted out.
You also mentioned in those old posts that you thought Howard might have been born in Michigan but I found marriage for his parents in Californiain 1909 so thought he may have been bornthere, but cannot find his birth. But, as the family left soon after he was born to go to Canada, they may not have registered him. ??
The marriage record is at familysearch.org and shows they married June 10, 1909 Los Angeles His full name Reginald Brotherhood Johnston - parents Mahlon A. Johnston and Rhoda J. Brotherhood
Maude Vesta Nickerson, parents Alberto Nickerson and Celia M. Linnell
Reginald is also in US WW11 draft reg, living in LA - his contact is Mrs. Norene Johnston, 1472-1/2 W. 37 Pl., Los Angeles - so a second wife maybe ?
and he died Dec. 11, 1959 LA
He is listed in death as Ray B. Johnston and again as Reginal Brotherhood Johnston - same both and death datesand same SS#, so same man
California Death Index, 1940-1997 about Ray B Johnston Name: Ray B Johnston Social Security #: 570165491 Sex: Male Birth Date: 28 Jul 1889 Birthplace: Canada Death Date: 11 Dec 1959 Death Place: Los Angeles Mother's Maiden Name: Brotherhood Father's Surname: Johnston
California Death Index, 1940-1997 about Reginal Brotherhood Johnston Name: Reginal Brotherhood Johnston Social Security #: 570165491 Sex: Male Birth Date: 28 Jul 1889 Birthplace: Canada Death Date: 11 Dec 1959 Death Place: Los Angeles Mother's Maiden Name: Brotherhood Father's Surname: Johnsto
I found him in 1940 census, listed as Ray. B. Johnston at same address as shown in the WW11 draft record.
1940 LOS ANGELES, CALIFORNIA 1472 -1/2, W. 37 PLACE JOHNSTON
Ray B., age 53, carpenter, building, born Canada English
Norene K., age 65, wife, born NY
it says they lived in same house in 1935
1930 LOS ANGELES, CALIFORNIA 1471-1/2, WEST 37 PLACE JOHNSTON
Ray B., age 44, carpenter, building construction , born Canada English both parents born Canada English
Norene K., age 51, wife, born NY father born Maryland, mother born Connecticut
There is a death for a Norene King Johnston, born July 10, 1875 NY died Aug. 21, 1942 LA maiden name Daly I found her death at ancestry.com
Carolyn L Just found birth for Maude at familysearch.org she was born June 6, 1883 Orleans, Massachusetts to Alberto S. Nickerson and Celia M. Linnell
AND looks like Maude age 16, was in Michigan in 1900 census living with her sister Ethel M., age 23 . Ethel is married to Ernest Lincoln and they have one child Ion C. age 4.
Ethel is age 3 in 1880 census with parents. As Maude was born 1883 she is not in any census with her parents BUT since she is in MI in 1900 perhaps she did go back there to have her son Howard.
I have not been able to find Reginald and your Dad Howard in Canada after 1911 census, nor have I found them crossing into US.
I didn't find Maude and daughter crossing to US either.