DB
Donald Baker — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this Donald Baker across the 1920, 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed), with identified parents Harry & Harry — first a son (b.~1917), then head of a 8-person household.
Age 23
b. ~1917
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Baker |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Occupation | Book-keeper |
| Industry | N.J. State Beverage Tax |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Book-Keeper |
| Township / Ward | Trenton City |
| Est. Birth Year | ~1917 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Donald Baker | Son | — | 23 | ~1917 |
| Kathryn Baker | Spouse | — | 51 | ~1889 |
| Joseph Baker | Son | — | 15 | ~1925 |
| Charles Baker | Son | — | 13 | ~1927 |
| Helen Baker | Daughter | — | 21 | ~1919 |
| Harry Baker | Head | — | 51 | ~1889 |
| Joan Baker | Son | — | 16 | ~1924 |
| James Baker | Son | — | 13 | ~1927 |
Census Appearances
1920
Mercer, New …
Son, age 3
Mercer, New Jersey · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baker |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Mercer, New …
Son, age 14
Mercer, New Jersey · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baker |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Mercer-County, New …
Son, age 23
Mercer-County, New Jersey · implied b. ~1917 — 8 household members
| Surname | Baker |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Occupation | Book-keeper |
| Industry | N.J. State Beverage Tax |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| 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 Donald Baker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Baker (~0.92 confidence) and father Harry Baker (~0.92 confidence) and father Harry Baker (~0.92 confidence) and mother Katherine Baker (~0.92 confidence) and mother Kathryn Baker (~0.92 confidence) and mother Kathryn Baker (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Baker
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Harry Baker
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Harry Baker
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Katherine Baker
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Kathryn Baker
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Kathryn Baker
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Baker
Son · 1940 · age 23 · b. ~1917 · New Jersey
★ You are viewing this record
Sibling
Helen Baker
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Baker
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Baker
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Baker
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Baker
Sibling · 1940 · age 13
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
38 people indexed on this census page (nara:1940:m-t0627-02437-00256)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph Zemla | 34 | Head | Guard | New York |
| 42 | Claire Zemla | 37 | Wife | — | New York |
| 43 | Margaret Zemla | 11 | Daughter | — | New Jersey |
| 44 | Maude Sanders | 45 | Head | — | New Jersey |
| 45 | Neil Sanders | 27 | Son | Mach. Operator | New Jersey |
| 46 | Hart Sanders | 19 | Son | Counter-Man | New Jersey |
| 47 | John Fitzpatrick | 42 | Lodger | Laborer | New Jersey |
| 48 | Catherine Baird | 28 | Head | Waitress | Pennsylvania |
| 49 | John T. Symmons | 56 | Head | Agent | England |
| 50 | Stella Symmons | 58 | Wife | — | Pennsylvania |
| 51 | Reynold Symmons | 24 | Head | Repair-Man | New Jersey |
| 52 | Ruth Symmons | 22 | Wife | Handle-Feeder | New Jersey |
| 53 | John Gleason | 76 | Head | — | Irish-Free State |
| 54 | Mary Gleason | 75 | Wife | — | Irish-Free State |
| 55 | John Barrett | 55 | Son-in-law | Laborer | Irish-Free State |
| 56 | Delia Barrett | 53 | Daughter | — | New Jersey |
| 57 | Joseph Barrett | 26 | Grandson | Cutter | New Jersey |
| 58 | Clarence W. Evans | 36 | Head | Meter-Tester | New Jersey |
| 59 | Mary Evans | 30 | Wife | — | New Jersey |
| 60 | Catherine Evans | 10 | Daughter | — | New Jersey |
| 61 | Louise Fackler | 55 | Lodger | Dressmaker | Pennsylvania |
| 62 | Frank Littlefield | 50 | Head | Clerk | Maine |
| 63 | Lola Littlefield | 45 | Wife | — | No. Carolina |
| 64 | John Kamrad | 37 | Head | Beauty Parlor Barber | At-Sea |
| 65 | Stephany Kamrad | 37 | Wife | — | Czecho Slovakia |
| 66 | Lorraine Kamrad | 15 | Daughter | — | New Jersey |
| 67 | John Kamrad | 12 | Son | — | New York |
| 68 | Geo. B. Valentine | 27 | Head | Sub-Setter | New Jersey |
| 69 | Louise Valentine | 24 | Wife | — | New Jersey |
| 70 | Richard Valentine | 1 | Son | — | New Jersey |
| 71 | Harry Baker | 51 | Head | Chauffeur | Pennsylvania |
| 72 | Kathryn Baker | 51 | Wife | — | New Jersey |
| 73 | Donald Baker THIS PERSON | 23 | Son | Book-Keeper | New Jersey |
| 74 | Helen Baker | 21 | Daughter | Book-Keeper | New Jersey |
| 75 | Joan Baker | 16 | Son | — | New Jersey |
| 76 | Joseph Baker | 15 | Son | — | New Jersey |
| 77 | Charles Baker | 13 | Son | — | New Jersey |
| 78 | James Baker | 13 | Son | — | New Jersey |
Pedigree Summary
Donald + 5 siblings
Gen 1 · 6 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)