AC
Anna Cooper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this Anna Cooper across the 1920, 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed), with identified parents John & Roy — first a daughter (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Cooper |
| Given Name | Anna M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Occupation | Attendant |
| Industry | State Hosp. |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 180 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Attendant |
| Township / Ward | Trenton City |
| Est. Birth Year | ~1916 |
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 1940 census.
| Name | Relation to head | Relative to Anna | Age | Birth yr |
|---|---|---|---|---|
| Emily Cooper | Daughter | — | 14 | ~1926 |
| Anna Cooper | Daughter | — | 24 | ~1916 |
| Roy Cooper | Head | — | 58 | ~1882 |
| Mary Cooper | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Mercer, New …
Daughter, age 4
Mercer, New Jersey · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Mercer, New …
Daughter, age 14
Mercer, New Jersey · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Anna |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Mercer-County, New …
Daughter, age 24
Mercer-County, New Jersey · implied b. ~1916 — 4 household members
| Surname | Cooper |
| Given Name | Anna M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Occupation | Attendant |
| Industry | State Hosp. |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 180 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Anna Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Cooper (~0.92 confidence) and father Roy Cooper (~0.92 confidence) and mother Mary Cooper (~0.92 confidence) and mother Mary Cooper (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Cooper
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Roy Cooper
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Mary Cooper
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Mary Cooper
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Anna Cooper
Daughter · 1940 · age 24 · b. ~1916 · New Jersey
★ You are viewing this record
Sibling
Emily Cooper
Sibling · 1940 · 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
1940 US Federal Census — Mercer-County, New Jersey
Open full size
1940 US Federal Census — Mercer-County, New Jersey
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02436-00835)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Martha Macqueen | 21 | Daughter | Teacher | New Jersey |
| 43 | Thos. W. Yates | 49 | Head | Director | New Jersey |
| 44 | Mabel O. Yates | 46 | Wife | — | New Jersey |
| 45 | Fred Cooper | 66 | Head | Supervisor Of Recreation | England |
| 46 | Catherine Cooper | 59 | Wife | — | New Jersey |
| 47 | Mabel O. Cooper | 32 | Daughter | Teacher | New Jersey |
| 48 | Laura V. Cooper | 22 | Daughter | Stenographer | New Jersey |
| 49 | Paul Ronga | 50 | Head | Machinist | New Jersey |
| 50 | Mary Y. Ronga | 46 | Wife | — | New Jersey |
| 51 | Miriam C. Ronga | 14 | Daughter | — | New Jersey |
| 52 | Minnie Silverstein | 39 | Head | — | New Jersey |
| 53 | Morris Silverstein | 15 | Son | — | New Jersey |
| 54 | Marilyn Silverstein | 12 | Daughter | — | New Jersey |
| 55 | Leonora Jones | 24 | Maid | Maid | N. Carolina |
| 56 | Roy D. Cooper | 58 | Head | Broker | New York |
| 57 | Mary A. Cooper | 49 | Wife | — | New York |
| 58 | Anna M. Cooper THIS PERSON | 24 | Daughter | Attendant | New Jersey |
| 59 | Emily M. Cooper | 14 | Daughter | — | New Jersey |
| 60 | Sydney F. Stearn | 56 | Head | Machinist | England |
| 61 | Sara A. Stearn | 59 | Wife | — | England |
| 62 | Sara Bates | 86 | Mother-in-law | — | England |
| 63 | Anna Lannigan | 75 | Head | — | New Jersey |
| 64 | Edwin C. Lannigan | 47 | Son | Director | New Jersey |
| 65 | Albert Levin | 39 | Head | Owner | Russia |
| 66 | Jessie F. Levin | 35 | Wife | — | Pennsylvania |
| 67 | Theodore S. Levin | 10 | Son | — | Pennsylvania |
| 68 | Richard Burgess | 60 | Head | Mason Contractor | England |
| 69 | Edith Burgess | 60 | Wife | — | England |
| 70 | Harvey F. Gerry | 28 | Head | Stock Clerk Attendant | New Jersey |
| 71 | Edna C. Gerry | 27 | Wife | Teacher | New Jersey |
| 72 | Ernest Y. Paetzer | 42 | Head | Teacher | Pennsylvania |
| 73 | Mary Paetzer | 41 | Wife | — | Pennsylvania |
| 74 | Hugo W. Ashmore | 44 | Head | Projectionist | New Jersey |
| 75 | Hazel J. Ashmore | 35 | Wife | — | New Jersey |
| 76 | Hugh W. Jr. Ashmore | 10 | Son | — | New Jersey |
| 77 | Paul R. Ashmore | 5 | Son | — | New Jersey |
| 78 | Mabel M. Mackenzie | 40 | Head | Dressmaker | New Jersey |
| 79 | Ruth S. Mackenzie | 16 | Daughter | — | New Jersey |
| 80 | Isabelle Mackenzie | 13 | Daughter | — | New Jersey |
Pedigree Summary
Anna + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)