I'm not sure what info you're looking for but this is what I found. I found your family tree on Ancestry (your query should say you have a family tree on Ancestry).
I didn't find anything for Harry and Gertrude prior to 1930.
A good way to find out more about a family is to request copies of their obituaries. Go to raogk.org, read guidelines, choose Idaho, choose Ada Co. and choose one volunteer.
Maybe Harry's and Gertrude's parents will be mentioned in their obituary. If not, you might have to order copies of their death certs.
Also be careful when you're posting queries about people living in Boise, Ada Co., ID. You posted in Boise Co. which is not Boise city. Successful Searching!