Clifford was in the census twice in 1920. Bend, Deschutes Co., Oregon, and also in Chicago with his mother, four days earlier. [4470], [4878]

In 1923, while in Bend, OR, Clifford purchased a Nash automobile. [4883]

Private, Casual Detachment #7, 163rd Depot Brigade (88th Division?)
Enlistment 08-APR-1918, Discharge: 20-DEC-1918
Serial No. 2544461. [1702], [4882]

Timeline (NOTE: the Clifford in these events has not been confirmed to be the correct person,
though no other Clifford FYDELL has been found anywhere):
1870 - "Austin Epheram FYDELL", born 06 Aug 1870, North Gwillimbury, York, Ontario [Familysearch.org "Ontario Births"; IGI says 1871]
1881 - FYDELL family moves from Ontario to Manistique, Schoolcraft Co., Michigan.
1895 - Austin Ephraim FYDELL marries Florence, in Canada(?).
1896 - Clifford Cann FYDELL born 07 MAR 1896, Manistique, Schoolcraft Co., Michigan [see WW-I & WW-II Draft Cards & IGI record]
1900 - 07-JAN-1900. Ephraim E. FYDELL, b. AUG 1871, Canada, single (and living with his father, Austin).
How could he have been Clifford’s father in 1896, but single in 1900?
>>> it appears that Ephraim E. FYDELL was the son of a different Austin FYDELL from Clifford’s father.
As of 1900, Austin & Matilda FYDELL (married ca.1871) in Manistique, MI, had 5 and only 5 children, none being Clifford. This Austin was born in England, 1849. Austin & Ephraim E. emigrated from Canada, 1881.
>>>> perhaps Ephraim E. FYDELL is actually Austin Epheram FYDELL (1900 says he was born Aug 1871, Canada)
1900 - 27-OCT-1900. Birth of Inga BENSON, Rhinelander, Oneida, Wisconsin [IGI record; California Death Records]
Unable to locate Clifford & his mother, Florence in 1900.
1903 - A. Irene ALLEN born in Minneapolis, MN.
1910 - Ephraim (as “A. Ephrum”), Florence (as “E. Florence”) & Clifford (age 14), Humbird, Bonner Co., Idaho [1910 census, “FADELL” in Ancestry.com index].
1910 - Inga BENSON, age 10, living with parents in Bonner Co., Idaho. Father=Mathew BENSON.
1913 - Austin Ephraim FYDELL dies [IGI record]
1917 - Clifford was living in International Falls, MN, in 1917. Registered for the Draft while there.
1917 - Clifford served in WW-I
1920 - 03-JAN-1920, Florence FYDELL and son Clifford. 23, Chicago, Cook Co., IL. Florence listed as a widow.
1920 - 07-JAN-1920, Clifford FYDELL, 23, Bend, Deschutes Co., Oregon.
1920(?) Clifford marries Inga BENSON, Sandpoint, Bonner, Idaho [IGI record]
>>> Note however that so far the only documented marriage of an Inga BENSON, in Idaho, took place 26-APR-1919 in Boise, Ada Co., Idaho, where the groom was George Henry HOLMES.(document image at Familysearch)
1923 - Florence FYDELL still living in Chicago, 6264 Stony Island Ave. [1923 Chicago city directory]
1923, January — Clifford registered an automobile in Bend, OR; it was a Nash. [4483]
1935 - 4526 Saturn, Los Angeles (from 1940 census)
1936 - Bend, Oregon, city directory listing (p.85) - no wife mentioned. [4880]
1940 - Census, 4526 Saturn, Los Angeles, as "Clifford FYDELLE" (“FYDELLO” in Ancestry), divorced; mother Florence is head of household.
Inga Benson (data from Ancestry public tree):
Birth 27 OCT 1899 in Oneida, Wisconsin, USA
Death 04 JUN 1967 in Los Angeles, California, USA
1942 - Clifford FYDELL & wife, Inga, in Los Angeles, CA, city directory, p.867. Same page: Florence E. FYDELLE, widow of “A E” at 4526 Saturn
1942 - Clifford FYDELL registers for WW-II Draft, Los Angeles, CA.
1945 - Clifford FYDELL dies, age 49, 06-MAY-1945, Los Angeles Co., CA. [342]
Government issued headstone ordered 1 Jun 1945
10 May 1945 - burial at Los Angeles National Cemetery: Section 160 Row E Site 16
1967 - Inga B. FYDELL dies in Los Angeles Co., CA, 04-JUN-1967 [342]
Find A Grave Memorial# 77726346