You may have the information I provided below, I didn't and needed it for research.Not sure what you mean to "understand the two deaths."
The 1920 Census for Mission, San Bernardino Co, CA, enumerated 2/4 January, Renting on Central Avenue
William Reinhard, 22, born in Wisconsin to both parents born in WI
Ethel, 18, born in Ohio to both parents born in OH
Alice, Mother(to William) 46, born in Wisconsin to father born in Louisiana, mother in Wisconsin.
There is a family tree posted on this family, owned by "Gaffla3."It has a picture of William Arthur Reinhard and Ethel Flora Johnson.
You can access this tree IF you have Ancestry.com at home.If not, you can access it (possibly) at your local library using their computer systems from your library card.I sent a message to the owner of this tree to review this thread and help if they can.
--Just heard back... Ethel died 3 Feb 1989 in Santa Ana, Orange Co, CA
This tree identified William was born 21 January 1897 (that matches age with the 1920 Census).He was born in Watertown, Dodge County, Wisconsin, son of Edward Edwin Reinhard 1869-1961 and Alice Lucretia Squvres, 1873-1961.He had two siblings, Eleanor Philibina Reinhard 1901-1975, and Roy Edwin Reinhard, 1906-1989.
He married Ethel Flora Johnson on 6 January 1919 in San Bernardino.He died 29 June 1920, a different date than what you had provided.Matthew Edwin Reinhard was born and died on the dates you provided.There was a daughter, Fern Lucille Reinhard, born 25 April 1924 in Loma Linda, San Bernardino County.She died 24 Dec 1996 in San Bernardino County.Fern married "Living" Sparks and had two daughters and two sons.
Ethel Flora Johnson/Reinhard married Lloyd Milton Cronenberg in about 1930.They had one son and two daughters; and, another child, possibly male, but not identified on the tree.
The Social Security Death Index:
Lloyd Cronenberg, born 5 Sep 1896, died May 1969.His "last residence" was in Grants Pass, Josephine County, Oregon.The "Last Residence" on the SSDI is NOT necessarily where the person actually lived.It is only identified as being the "home of record" by the Social Security Administration.
The Oregon Death Index:
Lloyd Mil (the database is often truncated after only a few letters) Cronenberg, died 14 May 1969 in Douglas County.The Oregon (and US States) Death Index show where a person died; but that does not mean they had lived there.
There are six family trees containing Lloyd, of which two are from the above persons trees.He was born 9/5/1896 in Toledo, Ohio, he married Ethel Flora Johnson in June 1926.Ethel died Feb 3, 1989 in California.Ethel had two sons and two daughters with Lloyd, one, Ralph Eugene Cronenberg was born 10/3/1929, died 5/27/1993 in New York.He is buried (1 June 1993) in the Calverton National Cemetery, NY.This tree identifies William Arthur Reinhard, died on 6/29/1924, the date that you presented.
As I had written above, I heard back from the owner of the first tree, Seth, will look for more information for you.