JC
James Cooper — 1930 US Census Record
Model Tree available1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this James Cooper across the 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents Louis & James — first a son (b.~1914), then head of a 4-person household.
Age 16
b. ~1914
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Cooper |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Lead Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Chauffeur |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1914 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Cooper | Daughter | — | 14 | ~1916 |
| James Cooper | Head | — | 42 | ~1888 |
| James Cooper | Son | — | 16 | ~1914 |
| Alice Cooper | Spouse | — | 39 | ~1891 |
Census Appearances
1920
Baltimore, Maryland
Son, age 5
Baltimore, Maryland · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 16
Baltimore, Maryland · implied b. ~1914 — 4 household members
| Surname | Cooper |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Chauffeur |
| Industry | Lead Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 26
Baltimore-City-County, Maryland · implied b. ~1914 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kooper |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| 1935 Residence (County) | Baltimore City |
| Occupation | painter |
| Industry | Railroad |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links James Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Louis Cooper (~0.92 confidence) and father James Cooper (~0.92 confidence) and father James Kooper (~0.92 confidence) and mother Alice Cooper (~0.92 confidence) and mother Catherine Kooper (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Louis Cooper
b. ~1878
Source father
● Household
· direct · ~0.92
Father
James Cooper
b. ~1888
Source father
● Household
· direct · ~0.92
Father
James Kooper
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Alice Cooper
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Catherine Kooper
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Cooper
Son · 1930 · age 16 · b. ~1914 · Maryland
★ You are viewing this record
Sibling
Dorothy Cooper
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus864unit:0932)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Margaret Wright | 11 | Daughter | — | Maryland |
| 52 | Lillian Wright | 9 | Daughter | — | Maryland |
| 53 | Arthur Wright | 7 | Son | — | Maryland |
| 54 | Hill | 40 | Head | Driver | Maryland |
| 55 | Maude Hill | 39 | Wife | Packer | Maryland |
| 56 | Alice Hill | 17 | Daughter | — | Maryland |
| 57 | Goldie Hill | 16 | Daughter | — | Maryland |
| 58 | Dorothy Hill | 14 | Daughter | — | Maryland |
| 59 | William Mitchell | 29 | Head | Finisher | Maryland |
| 60 | Ruth Mitchell | 23 | Sister | Packer | Maryland |
| 61 | Adeline Mitchell | 20 | Sister | Wrapper | Maryland |
| 62 | John Tschantre | 49 | Head | Jeweler | Switzerland |
| 63 | Mary Tschantre | 48 | Wife | — | Lithuania |
| 64 | John Tschantre | 22 | Son | Salesman | Maryland |
| 65 | Isaac Dukehart | 50 | Head | Chauffeur | Maryland |
| 66 | Amanda Dukehart | 48 | Wife | Filler | Maryland |
| 67 | Agatha Dukehart | 23 | Daughter | — | Maryland |
| 68 | Edward Dukehart | 20 | Son | — | Maryland |
| 69 | Mildred Dukehart | 16 | Daughter | — | Maryland |
| 70 | Mary Dukehart | 12 | Daughter | — | Maryland |
| 71 | Thomas Kennedy | 29 | Head | Machinist | Maryland |
| 72 | Jennie Kennedy | 24 | Wife | — | Pennsylvania |
| 73 | Elizabeth Dukehart | 48 | Head | — | Maryland |
| 74 | George Dukehart | 27 | Son | Chauffeur | Maryland |
| 75 | Mary Dukehart | 24 | Daughter | — | Maryland |
| 76 | Joseph Dukehart | 20 | Son | Salesman | Maryland |
| 77 | Alice Dukehart | 18 | Daughter | — | Maryland |
| 78 | James Dukehart | 16 | Son | — | Maryland |
| 79 | Lucy Dukehart | 14 | Daughter | — | Maryland |
| 80 | Robert Higgins | 40 | Head | Conductor | Maryland |
| 81 | Gertrude Higgins | 38 | Wife | — | Maryland |
| 82 | Dorothy Higgins | 18 | Daughter | Packer | Maryland |
| 83 | Ruth Higgins | 16 | Daughter | — | Maryland |
| 84 | Robert Higgins | 14 | Son | — | Maryland |
| 85 | John Higgins | 12 | Son | — | Maryland |
| 86 | Harry Green | 45 | Head | Salesman | Maryland |
| 87 | Linda Green | 43 | Wife | Saleslady | Maryland |
| 88 | William Green | 18 | Daughter | — | Maryland |
| 89 | Agnes Green | 16 | Daughter | — | Maryland |
| 90 | Edward Green | 14 | Son | — | Maryland |
| 91 | Thomas Sullivan | 55 | Head | Laborer | Ireland |
| 92 | Margaret Sullivan | 53 | Wife | — | Ireland |
| 93 | Thomas Sullivan | 22 | Son | Helper | Maryland |
| 94 | Mary Sullivan | 20 | Daughter | Packer | Maryland |
| 95 | Alice Sullivan | 18 | Daughter | — | Maryland |
| 96 | Joseph Sullivan | 16 | Son | — | Maryland |
| 97 | James Cooper | 42 | Head | Clerk | Maryland |
| 98 | Alice Cooper | 39 | Wife | — | Maryland |
| 99 | James Cooper THIS PERSON | 16 | Son | Chauffeur | Maryland |
| 100 | Dorothy Cooper | 14 | Daughter | — | Maryland |
Pedigree Summary
James + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)