I found your family in the Grant L. Davis Family Tree, trees.ancestry.com/tree/7310292/person... Thought you might want to contact the owner.
In 1900 the family was living in Oakland, Alameda, CA.
Edward A. Newland, head, b. CA July 1862, landlord.
Martha, wife, b. England, Jan 1870.
Guy E., b. CA April 1890.
Atherton A., b. CA Nov 1897.
Edward C. R., b. CA April 1900.
Catherine O'Brin, servant.
In 1910 most of the family was living in Bodega, Sonoma, CA.
Edward Newland, b. CA, 47, marr 21 yrs, no occupation.
Martha, wife, b. England, 40, immigrated 1885, had given birth to three children who were all alive in 1910.
Atherton A., b. CA, 12.
Edward C., b. CA, 10.
In 1920 most of the family was living in Oakland, Alameda, CA.
Edward A. Newland, b. CA, 57, no occupation listed.
Martha, b. England, 49, I 1885, naturalized 1893.
Edward C., b. CA, 19, single, shipping clerk rubber Co.
Their neighbors were Guy and his family.
Guy E. Newland, head, b. CA, 29, ____ oil co. ____.
Alice, wife, b. CA, 28.
Guy, b. CA, 4 2/12ths.
Sometime after the 1920 but before the 1930 Census Martha died I can't find her death info in Ancestry, FamilySearch or FindaGrave.
You can contact the Alameda County at www.ac.gov/org/auditor.clerk/ and scroll down to how to order a death certificate. There will be a charge whether they find it or not.
In 1930 most of the family was living in San Leandro, Alameda, CA.
Edward A. Newland, head, b. CA, 68.
Atherton A., son, b. CA, 33, widower, mechanic aviation.
Cecil R., son [I think he's the same person as Edward C.], b. CA, 29, mechanic general.
Carmennella, daulaw, b. MN, 25.
The 1940 Census will be issued next month but won't be indexed until hopefully the end of this year.
I didn't find Edward A.'s death info either. I don't know if Alameda County will look for his death cert if you only know he died 1930 or later.
Atherton A. Newland
Born: 17 Nov 1897, CA
Died: 3 Jan 1964, Alameda Co.
Mother's Maiden Name: Grandy
Source: California Death Index 1940-97.
Where a person is buried is generally in the obituary or their death certificate. You can request a copy of his obituary at http://freepages.genealogy.rootsweb.ancestry..http://freepages.genealogy.rootsweb.ancestry...
Scroll down to Alameda Co. and choose the person will bold printing.
Guy Edward Newland
Born: 14 April 1890, Oakland, Alameda, CA
Residence in 1942: San Jose St., San Leandro, Alameda Co.
Employer: Richmond Ship Building Co. #1, 4th & Cutting, Richmond, CA
Nearest Relative: Mrs. Alice Newland, 3905 Linwood Ave., Oakland
Source: U. S. World War II Draft Registration Cards.
Guy E. Newland
Born: 14 April 1890, CA
Death: 22 Sept. 1946, Alameda Co.
Mother's Maiden Name: Gandy
Source: Calif. Death Index 1940-97.
I'd use the same person for a copy of his obituary.
I found for Edward C. Newland that he was listed in the Oakland/Berkeley City Directory.
I did find one POSSIBILITY;
Name: Robert Sanders Newland
Born: 26 Feb. 1962, Navarro Co., Texas
Father: Edward C. Newland
Mother: Lequeta Joy French
Source: Texas Birth Index 1903-97.