He married Mrs. Gracie Mae Woods Isom 17 Mar 1941 Starke County, Indiana. They had 2 sons.

1940 Marshall County, Indiana Census
Oscar Krou 56
Gracie Mae Isom 32
Lillie Mae Isom 15
Gracie Ameia Isom 13
Lela Fern Isom 11
Billy Ray Isom 9
Lora Luella Isom 6
Donald Earl Isom 2

1930 Plymouth, Marshall Co., IN
Clara A. Kron 65
Oscar C. Kron 36

1920 Plymouth, Marshall County, Indiana
Levi Kron 69
Clara Kron 54
Oscar C. Kron 25
Clarence E. Kron 23

1910 Bremen, German Twp., Marshall Co., IN Census
Leviah Kraus 56
Clara Kraus 44
Elmer Kraus 18
Oscar Kraus 15
Edward Kraus 13

World War I Draft Registration Card
Oscar Clifton Krou
Marshall County, Indiana
Natural Born Citizen
Male
Birthdate: 23 Dec 1894
Birthplace: LaPaz, Indiana, United States
Occupation: Laborer in basket factory
Employer: Edgerton Mfg. Co.
Location: Plymouth, Indiana
Person to notify: Father and Mother
Marital status:Single
None
Reason to Claim Exemption: Sole supporter of father and mother.
Medium Build
Medium height
Gray eyes
Lt. Brown Hair
Bald: No
Signed: Randulph V. Shaker?
Registrar

World War II Draft Registration Card
Front: Serial Number: 1372
Name: Oscar Clifton Krou
Address: 723 W. Adams St. Plymouth, Marshall, Indiana
Mailing Address: Same
Telephone: None
Age in Years: 47
Place of Birth: Marshall County, Indiana
Date of Birth: Dec. 23, 1894
Name and Address of person who would know your address:
Gracie M. Krou
Address is same.
Emplooyer's Name and address: General Const. Co., Plymouth, Marshall, Indiana
Signed: Oscar Clifton Krou
Back:
Race: White
Height: 5'8"
Eyes: Gray
Weight: 160#
Hair: Gray
Complexion: Ruddy



1900 Liberty Twp., St. Joseph Co., IN Census
Levi Krou 48
Clara E. Krow 66
Hurl W. Krow 16
Elmer R. Krou 8
Oscar C. Krow 5
Clarence E. Krow 3

United States Social Security Death Index
Given Name: Oscar
Middle Name:
Surname: Krou
Birth Date: 23 Dec. 1894
SS# 303-01-....
State: Indiana
Last Place of Residence: , Marshall, Indiana
Previous Zip Code: 46563
Event Date: September 1979
Age: 85