I see you haven't posted much on genealogy websites.When you post, it is important to provide some critical information for volunteers or other family members for research purposes.This includes the date of birth.If you don't have that, provide approximate dates or information that can narrow down.This helps to eliminate persons having the same name.
I found your posted family tree.If you have one, post the link, that is a great help to volunteers or family:
--This shows Philip Backman was born about 1864 in New York, source info: 1870 Census, 1900 Census and 1930 Census.
--The 1900 Census shows birth in Sep 1865 in New York.
You show a death on 3 Sep 1931 in CA, source: US Veterans Gravesites, veteran Spanish American War.
--That cemetery shows a George Backman, born 1923 and his wife Marion, also buried there.No other Backman.I suggest you contact that cemetery for his file information, at least to confirm identity:
The 1910 Census for San Francisco, San Fran Co., CA.Enumerated 6 May
Phillip(sic) H. Backman (transcribed initially as Dockman), age 37(1872/1873), born in CA to both parents born in Ireland, carpenter/house, renting at 1227 York St, home of Peter and Mary Langan.Married 4 years.
-Minnie E, wife, age 28(1881/1882), born in CA to both parents born in Ireland.
---He is listed as being 37.An age is a common mistake found on the census.He provided the wrong age, whoever provided the information to the enumerator provided the wrong age (the landlord/landlady, wife, co renter), or the enumerator made the mistake.OR, this wasn't the correct person.
--Married four years... The San Francisco Earthquake was in April 1906, records were lost... Here is an interesting site about the rush to get married then: http://www.sfgenealogy.com/1906/06index.htmhttp://www.sfgenealogy.com/1906/06index.htmI DID look through the databases, he was not identified.The 1910 Census was enumerated in May 1910, just over 4 years since the quake.A hurried marriage after disaster...sometimes ends in hurried divorce.(I do NOT put in a link without having checked it before.Some "researchers" put in a telephone finder link to find family without looking themselves...even though the name isn't in it.Or, put in a telephone link to find family when the family was last known 20 years ago... Common Sense in Genealogy).
The 1924 CA Voter Registrations show Philip H. Backman living at 3119 Harrison Street, Carpenter, Republican.No other Backman listed.
The California Death Index does not show any "Minnie" Backman with death between 1910 and 1929.In San Fran. Co, there was Florence 52, died 1917; HIlda 37, died 1927, spouse's first initial "A."
First, contact the National Cemetery.They should have some information, possibly the Death Certificate.When someone in CA dies, the coroner of course issues a DC.A County Registrar reviews the DC and issues the burial permit or permit to transfer outside of the County jurisdiction.That permit "might" be in the records also.
Death Certificate:If it isn't in the above, or there doesn't appear to be any family or friends identified in the cemetery records, there probably wouldn't be much in the DC of value.It "could" identify the name of a person supplying information about him, but unless they were relatives, their identity and relationship would be unknown.They might be a co-worker, supervisor, landlord.Even with the name, they probably have passed and couldn't supply much more information than is on the DC.The DC "might" identify cause of death.
The Random Acts of Genealogical Kindness has a volunteer that searches for births: http://www.raogk.org/californ4.htmhttp://www.raogk.org/californ4.htm
Obit:The 1930 Census identifies he was living alone, a "widower."Unless a friend paid for his obituary (today's term), there probably wouldn't be one.There "might" be a death notice (today's term), usually just the name and date of funeral.However, if he died without family, friends, there probably was not a funeral.He might have contacted/arranged for burial himself, based on his military service, prior to death.
County records:"IF" you can find a volunteer, have them check the Superior Court records for a divorce/dissolution case.These cases are in the County Superior (Circuit) courts.The Court clerks are required by law to maintain records in archives.This case might be found on microfilm.I doubt it, but if a child was born, the record would stipulate for child payments.The Auditor/Recorder should have a record of marriage application.