Hi Phosphater,
I see Archibald S. Bartleman on the California Death Index and on the Social Security death index. His birth date is 12 Feb 1892 in "other country". The California record says the place of death is Shasta county. The Social Security record says his last residence was Winters, Yolo County and his last benefit was to Redding, Shasta County. Both are in Northern California. It would probably be a good idea to see if you can find an obituary notice for Archibald. It may say where the rest of his family are living.
Archibald is on the US WW2 draft list (there is a form for men born between 1877 and 1897). He is living in Oakland, Alameda County California. He says he was born in Edinburgh and is married to Catherine Cain. So, he is in California as of 1942.
I don't see Peter on either the California Death Index or SSDI. The California one covers 1940 - 1997. I believe the SSDI covers deaths from the 1960s onwards. I have not found a draft card for Peter either. If he did go to the US, perhaps he died prior to 1942??
I don't see either of them on the border crossing lists on A--Y (but those are NOT complete). And, surprisingly, I don't see either of them on the 1930 US census. The most recent Canadian census is 1911. This would be too early.
I am sorry I can't be more help. Hopefully someone else will be able to help you. Maybe a relative will read your post??
Happy New Year,
RK