He was born in Utah, died in Santa Cruz County, CA and his mother's maiden name was Dunbar per the CA death index.

Social Security Applications and Claims Index
Name: Hugh Louis Chamberlin Jr
[Hugh Chamberlin Jr]
Gender: Male
Race: White
Birth Date: 4 Feb 1929
Birth Place: Park City Su, Utah
Death Date: Jul 1983
Father: Hugh L Chamberlin
Mother: Anna M Dunbar
Notes: Feb 1944: Name listed as HUGH LOUIS CHAMBERLIN JR; 31 Dec 1987: Name listed as HUGH CHAMBERLIN

1930 US Census
Name: Hugh L Chamberlain
[Hugh L Chamberlin]
Birth Year: abt 1929
[abt 1929]
Gender: Male
Race: White
Age in 1930: 1
[12/12]
Birthplace: Utah
Marital Status: Single
Relation to Head of House: Son
Home in 1930: Park City, Summit, Utah, USA
Map of Home: Park City, Summit, Utah
Street Address: Rossie Hill
Ward of City: Second
Block: x
House Number: 244
Dwelling Number: 281
Family Number: 327
Attended School: No
Father's Birthplace: Kansas
Mother's Birthplace: Utah
Household Members Age Relationship
Hugh L Chamberlain 29 Head
Anna M Chamberlain 21 Wife
Hugh L Chamberlain 1 Son

1940 US Census
Name: Hugh Louis Chamberlin
Age: 11
Estimated Birth Year: abt 1929
Gender: Male
Race: White
Birthplace: Utah
Marital Status: Single
Relation to Head of House: Son
Home in 1940: Park City, Summit, Utah
Map of Home in 1940: Park City, Summit, Utah
Street: Norfolk Avenue
House Number: 962
Inferred Residence in 1935: Park City, Summit, Utah
Residence in 1935: Park City
Resident on farm in 1935: No
Sheet Number: 12A
Attended School or College: Yes
Highest Grade Completed: Elementary school, 4th grade
Neighbors: View others on page
Household Members Age Relationship
Hugh L Chamberlin 40 Head
Anna ME Chamberlin 32 Wife
Hugh Louis Chamberlin 11 Son
Peggy Margaret Chamberlin 8 Daughter

WWII Draft Card
Name: Hugh Louis Chamberlin
Race: White
Age: 18
Relationship to Draftee: Self (Head)
Birth Date: 4 Feb 1929
Birth Place: Park City, Utah, USA
Residence Place: Park City, Summit, Utah, USA
Registration Date: 1947
Registration Place: Park City, Summit, Utah, USA
Employer: Full Time Student
Weight: 167
Complexion: Light Brown
Eye Color: Blue
Hair Color: Brown
Height: 6 3
Next of Kin: Hugh Louis Chamberlin
Household Members:
Name Relationship
Hugh Louis Chamberlin Self (Head)
Hugh Louis Chamberlin Father

U.S., Department of Veterans Affairs BIRLS Death File, 1850-2010
Name: Hugh Chamberlin
Gender: Male
Birth Date: 4 Feb 1929
Death Date: 7 Jul 1983
Branch 1: NAVY
Enlistment Date 1: 26 Apr 1948
Release Date 1: 23 Apr 1953