Answering my own question here, Found Delia's maiden name:
Really bizarre, even though I just got a letter of no record found from LA county recorder for Myrtella for the range they searched, yet I just found it online myself...in that date range. Kind of annoyed that they'd not send a record that they DO have, but at least there is an image online. Found the digital film image of it on family search of dau. Myrtella Bonekemper's Death cert. (her informant was her dau. margaret). https://familysearch.org/pal:/MM9.3.1/TH-1942-29222-10638-88...
This death certificate does list mother's maiden name: CHILDE - and that her mother(Delia) was born in NY.
George Brides's birthplace was listed as Bangor, Maine.
Myrtella was b. in Monticello, Green, WI.
Looks like the Childs/Child/Childe connection is true- now to find a Childs who m. an Atwood with ties to NH and NY