Is "Flossie" her nickname, or is it her middle name?

— born in White Cross Pct., Ada Co., ID:
2.  George Roland LYON, b. 23 Dec 1920; d. 5 Jun 1981, Sacto
3.  Jack Clair LYON, b. 8 Jun 1927; d. 20 Apr 2014; bur. Sacto
4.  Ralph LYON, b. 8 Jun 1927; d. 14 Apr 1975, Sacto
5.  Robert H. LYON, b. 1928/9
6.  Arnold E. LYON, b. 24 Aug 1930

1.  Marriage Record: 

2.  1900 U.S. Census Every-Name-Index/Images (online at Ancestry.com):  Clair U. LYONS (æ 7, b. Apr 1893, MN) is living in Rose Twp., Payne Co., OK, with his divorced/deserted mother. 

3.  1910 U.S. Census Every-Name-Index/Images (online at Ancestry.com):  Clair LYON (æ 17, b. MN) is living in Ada Co., ID, with his mother and stepfather.

4.  1920 U.S. Census Every-Name-Index/Images (online at Ancestry.com, Image #28 of 59):  Cisco City (Pct. 6), Eastland Co., TX, Roll T625_1797, p. 295A, SN 15A, SD 17, ED 119, enumerated 6 Feb 1920, official enumeration date 1 Jan 1920 (extracted by Diana Gale Matthiesen):¤•

1920:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).
2	3	4	5	6	7	9	10	11	12	19	21	22	23	25	26	28
X	260	281	Lyons U C	Head	R	M	W	26	M	Minnessota	England	English	Ioway	Y	Laborer	W
			Flora	Wife		F	W	20	M	Oklahoma	Ioway		Nebraska		None
			Richard	Son		M	W	2	S	Idaho	Minnesota		Oklahoma		None

5.  1930 U.S. Census Every-Name-Index/Images (online at Ancestry.com, Image #13 of 17):  White Cross Pct., Ada Co., ID, Roll 395 (Book 2), p. 139A, SN 7A, ED 1-49, SD 5, enumerated 22 Apr 1930, official enumeration date 1 Apr 1930 (extracted by Diana Gale Matthiesen):¤•

1930:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

24

25

26

27

28

30

32

149

149

Lyon Ullyesses C

Head

R

13,000

N

Y

M

W

37

M

23

N

Y

Minnesota

England

Iowa

Y

Farmer

Farm

0

Y

N

138

____ Flora F

Wife

F

W

30

M

17

N

Y

Oklahoma

Iowa

Nebraska

Y

None

____ Richard C

Son

M

W

12

S

Y

Y

Idaho

Minnesota

Oklahoma

None

____ George R

Son

M

W

9

S

Y

Y

Idaho

Minnesota

Oklahoma

None

____ Jack

Son

M

W

2 10/12

S

N

N

Idaho

Minnesota

Oklahoma

None

____ Ralph

Son

M

W

2 10/12

S

N

N

Idaho

Minnesota

Oklahoma

None

____ Robert H

Son

M

W

1 6/12

S

N

N

Idaho

Minnesota

Oklahoma

None

Hariman James P

Nephew

M

W

11

S

Y

Y

Oklahoma

United States

Oklahoma

None

8.  SSDI:  Social Security Death Index (online at Ancestry.com):

Name	SSN	Last Residence	Birth	Death	Issued
Ulysses Lyon	564-20-9349	Sacramento, Sacramento, CA 95838	1 Apr 1893	Sep 1968	CA (<1951)
Flora F. Lyon	570-28-0848	Auburn, Placer, CA 95604	2 Nov 1899	7 Jul 1998	CA (<1951)
Richard Lyon	554-20-2964	Citrus Heights, Sacramento, CA 95610	5 Dec 1917	Dec 1981	CA (<1951)
George Lyon	554-20-2389		23 Dec 1920	Jun 1981	CA (<1951)
Ralph Lyon	570-28-1380		8 Jun 1927	Apr 1975	CA (<1951)

9.  Find-a-Grave: Entries (online at findagrave.com):

Name	Ulysses Clair Lyon	Flora F Lyon	Jack Clair Lyon
Birth	1 Apr 1893	2 Nov 1899	8 Jun 1927
Death	Sep 1968	7 Jul 1998	20 Apr 2014
Burial	Chapel of the Chimes: Sunset Lawn Memorial Park & Funeral Home Sacramento, Sacramento Co., CA		Sacramento Valley National Cemetery Dixon, Solano Co., CA
Inscription	ULYSSES CLAIR LYON HUSBAND & FATHER 1893  —  1968	FLORA F LYON WIFE & MOTHER 1899  —  1998	[Cross] JACK CLAIR LYON, PFC, USA AF WORLD WAR II JUN 8 1927, APR 21 2014 BELOVED HUSBAND [hidden by grass]...THER
Memorial #	70556346	70556177	135602120

10.  World War I Selective Service System Draft Registration Cards, 1917-18.  Microfilm Series M1509 (4277 rolls), NARA, Washington, DC (card images and index online at Ancestry.com):

Microfilm Roll		1452106 | Ada County, Idaho
1	Name in full | Age in yrs	Ulysses Clair Lyon | 24
2	Home Address	R.F.D. #1, Boise, Idaho
3	Date of Birth	April 1st, 1893
4	Are you (1) a natural born citizen…	Natural Born
5	Where were you born	St. Paul, Minnesota, U.S.A.
6	If not a citizen, of what country…
7	What is your present trade, occupation…	Farmer
8	By whom employed	Boise High School
	Where employed	Boise, Idaho
9	Have you [dependents]?	Wife and Mother
10	Married or Single | Race	Married | Caucasian
11	What military service have you had?	None
12	Do you claim exemption from draft?	Wife and Mother
Signature		Ulysses Clair Lyon
1	Height | Build	Medium | Medium
2	Color of Eyes | Color of Hair | Bald	Blue | Brown | no
3	Physically Disabled	no
Date of Registration		June 5th, 1917

11.  U.S. World War II Draft Registration Cards, 1942 .  Microfilm Series M19643, Roll 1, National Archives and Records Administration, Washington, DC (online at Ancestry.com):

Name:	Ulysses Clair Lyon
Place of Residence:	Park and Hayse, Del Pass Heights, Calif.
Mailing Address:	Box 141 - Del Pass Heights, Calif
Telephone:
Age in Years | Date of Birth:	49 | Apr 1 1893
Place of Birth:	Captomama Co., Minn.
Name and Address of Contact:	Richard Lyon - Box 141 Del Pass Hts, Calif.
Employer's Name and Address:	U.S. Gov.
Place of Employment:	McClellan Feild (sic), Calif.
Registrant's Signature:	Ulysses Clair Lyon

12.  LDS.  Family Search:  Family Trees (online at familysearch.org).

13.  Public Member Trees (online at Ancestry.com).

14.  WorldConnect / Ancestry World Trees (online at RootsWeb.com/Ancestry.com).