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Joseph Cooper — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Joseph Cooper across the 1920 and 1930 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a son (b.~1911), then head of a 18-person household.
Age 9
b. ~1911
Male
Son
Born: Maryland
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Baltimore, Maryland |
| Surname | Cooper |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | 13Th Dist Prec 3 |
| Est. Birth Year | ~1911 |
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.
18 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Ida Cooper | Daughter | — | 6 | ~1914 |
| Paraddy Cooper | Head | — | 44 | ~1876 |
| Carl Cooper | Son | — | 1 | ~1919 |
| Joseph Cooper | Son | — | 9 | ~1911 |
| Braddy Cooper | Son | — | 18 | ~1902 |
| Lillian Cooper | Daughter | — | 2 | ~1918 |
| Thomas Cooper | Son | — | 16 | ~1904 |
| Dempsey Cooper | Son | — | ~1920 | |
| Louisa Cooper | Daughter | — | 23 | ~1897 |
| Anna Cooper | Daughter | — | 1 | ~1919 |
| Anthony Cooper | Son | — | 9 | ~1911 |
| Delhia Cooper | Daughter | — | 10 | ~1910 |
| Harrison Cooper | Son | — | 19 | ~1901 |
| Viola Cooper | Daughter | — | 15 | ~1905 |
| Mary Cooper | Spouse | — | 37 | ~1883 |
| Rebecca Cooper | Daughter | — | 7 | ~1913 |
| Pearl Cooper | Daughter | — | 7 | ~1913 |
| Katie Cooper | Daughter | — | 13 | ~1907 |
Census Appearances
1920
Baltimore, Maryland
Son, age 9
Baltimore, Maryland · implied b. ~1911 — 18 household members
| Surname | Cooper |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 20
Baltimore, Maryland · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | J Ernst |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Chauffeur |
| Industry | Plummer |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Joseph Cooper across 2 US Census years (1920 and 1930) in Baltimore, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Cooper
Son · 1920 · age 9 · b. ~1911 · Maryland
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Sibling
Delhia Cooper
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rebecca Cooper
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louisa Cooper
Sibling · 1920 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Cooper
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Cooper
Sibling · 1920 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harrison Cooper
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ida Cooper
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pearl Cooper
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Cooper
Sibling · 1920 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anthony Cooper
Sibling · 1920 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dempsey Cooper
Sibling · 1920 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katie Cooper
Sibling · 1920 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Cooper
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Braddy Cooper
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Cooper
Sibling · 1920 · age 1
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
1920 US Federal Census — Baltimore, Maryland
Open full size
1920 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu655unit:0899)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | James | 26 | Son | — | Maryland |
| 52 | Wilson D. Stevens | 45 | Head | Farmer | Maryland |
| 53 | Annie A. Stevens | 45 | Wife | — | Maryland |
| 54 | Sarah H. Stevens | 19 | Daughter | — | Maryland |
| 55 | Victor Stevens | 16 | Son | Farm Laborer | Maryland |
| 56 | Florence Stevens | 13 | Daughter | — | Maryland |
| 57 | Hazel G. Stevens | 8 | Daughter | — | Maryland |
| 58 | Samuel Jones | 64 | Head | Merchant | Maryland |
| 59 | Elizabeth S. Jones | 69 | Sister | — | Maryland |
| 60 | Frederick Jones | 30 | Son | Laborer | Maryland |
| 61 | Charles H. Grebe | 32 | Head | Merchant | Maryland |
| 62 | Elizabeth A. Grebe | 33 | Wife | — | Maryland |
| 63 | Charles C. Grebe | 10 | Son | — | Maryland |
| 64 | Walter Grebe | 7 | Son | — | Maryland |
| 65 | James C. Grebe | 5 | Son | — | Maryland |
| 66 | James B. Green | 47 | Head | Caretaker | Maryland |
| 67 | Elizabeth Green | 42 | Wife | — | Maryland |
| 68 | Amelia Hill | 22 | Step daughter | Servant | Maryland |
| 69 | Vinton Hill | 19 | Step daughter | Servant | Maryland |
| 70 | Edna Hill | 15 | Step daughter | — | Maryland |
| 71 | Florence Williams | 72 | Boarder | — | Maryland |
| 72 | John Byard | 68 | Boarder | Laborer | Maryland |
| 73 | Alex Hughes | 58 | Head | — | Maryland |
| 74 | John H. Puckert | 82 | Head | — | Germany |
| 75 | Henrietta Puckert | 81 | Wife | — | Germany |
| 76 | Sarah Puckert | 53 | daughter | School Teacher | Maryland |
| 77 | Hattie Puckert | 49 | daughter | Agent | New Jersey |
| 78 | Henry F. Puckert | 47 | Son | Laborer | South Carolina |
| 79 | Harry Staub | 56 | Head | Mail Carrier | Maryland |
| 80 | Emma D. Staub | 44 | Wife | — | Maryland |
| 81 | Paraddy Cooper | 44 | Head | Laborer | Maryland |
| 82 | Mary E. Cooper | 37 | Wife | Washerwoman | Maryland |
| 83 | Harrison Cooper | 19 | Son | Laborer | Maryland |
| 84 | Braddy Cooper | 18 | Son | Laborer | Maryland |
| 85 | Thomas Cooper | 16 | Son | Laborer | Maryland |
| 86 | Louisa Cooper | 23 | daughter | Washerwoman | Maryland |
| 87 | Viola Cooper | 15 | daughter | Washerwoman | Maryland |
| 88 | Katie L. Cooper | 13 | daughter | — | Maryland |
| 89 | Delhia Cooper | 10 | daughter | — | Maryland |
| 90 | Joseph Cooper THIS PERSON | 9 | Son | — | Maryland |
| 91 | Anthony Cooper | 9 | Son | — | Maryland |
| 92 | Rebecca Cooper | 7 | daughter | — | Maryland |
| 93 | Ida Cooper | 6 | daughter | — | Maryland |
| 94 | Anna Cooper | 1 | daughter | — | Maryland |
| 95 | Carl Cooper | 1 | Son | — | Maryland |
| 96 | Pearl Cooper | 7 | daughter | — | Maryland |
| 97 | Lillian Cooper | 2 | daughter | — | Maryland |
| 98 | Dempsey Cooper | 0 | Son | — | Maryland |
| 99 | Henry Dryer | 42 | Head | Carpenter | Maryland |
| 100 | Mary Dryer | 31 | Wife | — | Maryland |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)