The only source for our subject having given name "Frank" is the 1900 census, where he is still living with his parents (q.v.), yet that census cannot be ignored.  My suspicion is that Frank is short for Franklin.

— born in NE, either in Seward Co., NE, or Lincoln, Lancaster Co., NE:
3.  Wilber Rowe STROUP, b. 8 Jun 1913

1.  Marriage Record:

2.  1910 Census Every-Name-Index/Images (online at Ancestry.com, Image #9 of 12):  Precinct A, Seward Co., NE, Row T624_855 (Book 2), p. 5A, SN 5A, SD 4, ED 158, enumerated 29 Apr - 30 May 1910, official enumeration date 15 Apr 1910 (extracted by Diana Gale Matthiesen):¤•

1910:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).

1

2

3

4

5

6

7

8

9

10

11

12

13

14

17

18

19

20

21

22

23

24

25

26

28

29

83

83

Higgins James M

Head

M

W

48

M1

28

IA

unk

unk

Eng

Farmer

General Farm

OA

Y

Y

R

F

78

_______ Katherine A

Wife

F

W

45

M1

28

8

8

IA

unk

unk

Eng

None

Y

Y

Stroup Minnie L

Dau

F

W

27

M1

7

2

2

NE

IA

IA

Eng

None

Y

Y

Higgins James E

Son

M

W

21

S

NE

IA

IA

Eng

Y

Y

_______ Earnest G

Son

M

W

19

S

NE

IA

IA

Eng

None

Y

Y

N

_______ Arthur

Son

M

W

17

S

NE

IA

IA

Eng

None

Y

Y

Y

_______ Lillie P

Dau

F

W

14

S

NE

IA

IA

Eng

None

Y

Y

Y

_______ George D

Son

M

W

11

S

NE

IA

IA

Eng

None

Y

Y

Y

_______ Etta M

Dau

F

W

7

S

NE

IA

IA

None

Y

Stroup Clarence M

GSon

M

W

5

S

NE

OH

NE

None

Y

______ Howard W

GSon

M

W

3

S

NE

OH

NE

None

______ Wilson

S-in-law

M

W

36

M1

7

OH

PA

unk

Eng

Plumber

W

N

0

Y

Y

There's a line linking Minnie with Wilson.  Wilson should be age 41.  Something had been written in the Occupation field for James, then rubbed out.

3.  1920 Census Every-Name-Index/Images (online at Ancestry.com, Image #27 of 36):  2277 Holdrige Street, Lincoln City (Ward 3), D Pct., Lancaster Co., NE, R625_996 (Book 1), p. 224A, SN 14A, SD 1, ED 65, enumerated 12 Jan 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).

1

2

3

4

5

6

7

8

9

10

11

12

16

17

18

19

21

23

25

26

27

28

*

2277

318

325

Stroup Wilson

Head

O

M

M

W

50

M

Y

Y

OH

PA

OH

Y

Steam-Fitter

Plumbing Co

W

______ Minnie

Wife

F

W

36

M

Y

Y

NE

IA

IA

Y

None

______ Clarence

Son

M

W

15

S

Y

Y

Y

NE

OH

NE

Y

None

______ Howard

Son

M

W

12

S

Y

Y

Y

NE

OH

NE

Y

None

______ Wilber

Son

M

W

6

S

Y

Y

Y

NE

OH

NE

None

Higgins Etta

S-in-law

F

W

17

S

N

Y

Y

NE

IA

IA

Y

Saleslady

Ten Cent Store

W

*Holdrige Street

4.  1930 Census Every-Name-Index/Images (online at Ancestry.com, Image #2 of 10):  1425 North 22nd Street, Lincoln City (Ward 3), Lancaster Co., NE, Roll 1285 (Book 1), p. 275B, SN 1B, ED 55-78, SD 8, enumerated 16 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

11

12

13

14

15

16

17

18

19

20

24

25

26

27

28

29

30

14

14

Stroup Wilson

Head

O

3500

R

M

W

68

M

35

N

Y

OH

PA

OH

Y

Steam Fitter

Plumbing shop

W

N

2

N

______ Minnie

Wife

F

W

47

M

19

N

Y

NE

IA

IA

Y

None

______ Howard

Son

M

W

23

S

N

Y

NE

OH

NE

Y

Laborer

Telephone W??

W

Y

N

______ Wilber

Son

M

W

17

S

Y

Y

NE

OH

NE

Y

None

Wilson should be age 61.  Listed next to the family of Amelia BROWN, whom Howard married in 1931.  Can't find Clarence.

5.  Lincoln High School, Lancanster County, NE:  Class of 1931 (online at lancaster.ancestralwhispers.com):  "Stroup, Wilber."

6.  Anon.  Friday, 19 Oct 1956.  "Honored."  The Lincoln Star (Lincoln, NE), p. 14 (online at Ancestry.com):

Honoring Wilson Stroup on his 88th birthday anniversary Tuesday evening, Mr. and Mrs. Arthur Higgins entertained 50 guests at a family dinner held at their home. Present for the occasion were Mr. Stroup's three sons and daughters-in-law, Mr. and Mrs. C.M. Stroup of Mission, Kan., Mr. and Mrs. Wilbur Stroup of Ontario, Ore., and Mr. and Mrs. Howard stroup, Lincoln. Also coming from out of town for the dinner were Mr. and Mrs. George Higgins of Chapell, and Mr. and Mrs. Harold Higgins of Sidney.

7.  Anon.  Thursday, 17 Sep 1959.  "Dinner Honors Wilson Stroup."  Lincoln Evening Journal and Nebraska State Journal (Lincoln, NE), p. 15 (online at Ancestry.com):

Mr. and Mrs. Wayne Higgins entertained at a family dinner for 54 guests honoring their uncle, Wilson Stroup, on his 91st birthday. Out-of-town guests included two of Mr. Stroup's sons and their wives, Messrs. and Mmes. Wilbert Stroup of Ontario, Ore., and Clarence M. Stroup of Mission, Kan.

8.  Anon.  Friday, 1 Jan 1960.  "Deaths and Funerals." Lincoln Evening Journal (Lincoln, NE), p. 12 (online at Ancestry.com):

STROUP—Wilson Stroup, 91, of 1425 No. 22nd, died Thursday. Born Oct. 15, 1868, at Spencer, O.  He was a retired steam fitter and had lived in Lincoln over 60 years.  Member of Capital Lodge #11, IOOF, Modern Woodmen, Plumber & Steam Fitters Local Union #88, First Christian Church in Ontario, Ore.  Survivors: sons, Clarence M. of Mission, Kan., Howard W. of Lincoln, and Wilbur R. of Ontario, Ore.; grandsons, Jim R. and David W. of Ontario, Ore. Hodsman-Splain.

9.  Broderbund.  World Family Tree.  Vol. 3, Tree #2736.  The 16 Oct 1868 birthdate for Wilson is from this pedigree; otherwise, the tree is about Minnie's genealogy.

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

11.  One World Tree (online at Ancestry.com).

12.  Messages posted to the Stroup Family Genealogy Forum (online at GenForum.com).

13.  Pixley-Blair: Pioneers and Princes (online at pixleyblair.tribalpages.com).