HB
Harold Baker — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Harold Baker across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 3-person household.
Age 39
b. ~1901
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Baker |
| Given Name | Harold A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Berkshire |
| Additional Details | |
| Occupation | Correction Officer |
| Industry | State Reformatory |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1820 |
| Highest Grade | H 4 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Correction Officer |
| Township / Ward | Concord Junction |
| Est. Birth Year | ~1901 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| David Baker | Son | — | 1 | ~1939 |
| Harold Baker | Head | — | 39 | ~1901 |
| Charlotte Baker | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Middlesex, Massachusetts
Other, age 21
Middlesex, Massachusetts · implied b. ~1899 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baker |
| Given Name | Harold W. |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Salesman |
| Industry | Grocery Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Head, age 30
Middlesex, Massachusetts · implied b. ~1900 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baker |
| Given Name | Harold W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 21 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Shipper |
| Industry | Nail Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2,600 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 39
Middlesex-County, Massachusetts · implied b. ~1901 — 3 household members
| Surname | Baker |
| Given Name | Harold A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Berkshire |
| Occupation | Correction Officer |
| Industry | State Reformatory |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1820 |
| Highest Grade | H 4 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Harold Baker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Harold Baker
Head · 1940 · age 39 · b. ~1901 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01603-00964)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | E. Blanche Hewitt | 62 | Head | — | Canada Eng |
| 42 | Gertrude Neiland | 41 | Lodger | Teacher | New York |
| 43 | Alphonse Landini | 41 | Head | Gas Fitter | Italy |
| 44 | Louise Landini | 39 | Wife | — | Massachusetts |
| 45 | Charlotte A. Landini | 14 | Daughter | — | Massachusetts |
| 46 | Marie L. Landini | 10 | Daughter | — | Massachusetts |
| 47 | Paul A. Landini | 6 | Son | — | Massachusetts |
| 48 | Salvatore Palmer | 35 | Head | Owner & Mgr | Massachusetts |
| 49 | Julia R. Palmer | 31 | Wife | — | Massachusetts |
| 50 | John L. Palmer | 3 | Son | — | Massachusetts |
| 51 | Harold A. Baker THIS PERSON | 39 | Head | Correction Officer | Massachusetts |
| 52 | Charlotte M. Baker | 35 | Wife | — | Massachusetts |
| 53 | David D. Baker | 1 | Son | — | Massachusetts |
| 54 | Albert J. Hicks | 65 | Head | Station Agent | Massachusetts |
| 55 | Ida M. Hicks | 60 | Wife | — | Massachusetts |
| 56 | Winifred F. Carter | 68 | Head | Pres & Treas | Newfoundland |
| 57 | Robert L. Carter | 17 | Son | — | Massachusetts |
| 58 | Leonard Murdock | 76 | Head | — | Ohio |
| 59 | Mildred Murdock | 44 | Daughter | Secretary | Massachusetts |
| 60 | E. Edward Doyle | 29 | Head | Garment Worker | Massachusetts |
| 61 | Mary Doyle | 28 | Wife | — | Rhode Island |
| 62 | Charles E. Doyle | 5 | Son | — | Massachusetts |
| 63 | John J. Berger | 28 | Lodger | Musical Director | New York |
| 64 | James Boblaw | 78 | Lodger | — | Northern Ireland |
| 65 | Doyle | 84 | Lodger | — | New York |
| 66 | Franklin Q. White | 29 | Head | Teacher | Massachusetts |
| 67 | Mona E. White | 28 | Wife | — | Massachusetts |
| 68 | Frederick E. Lawton | 60 | Head | Correction Officer | Massachusetts |
| 69 | Mary L. Lawton | 28 | Daughter | Bookkeeper | Massachusetts |
| 70 | Anita E. Lawton | 26 | Daughter | Counselor | Massachusetts |
| 71 | Frederick E. Lawton | 21 | Son | Laborer | Massachusetts |
| 72 | James H. De Neille | 57 | Head | Instructor | Massachusetts |
| 73 | Grace De Neille | 44 | Wife | — | Massachusetts |
| 74 | Muriel De Neille | 12 | Daughter | — | Massachusetts |
| 75 | James H. De Neille | 11 | Son | — | Massachusetts |
| 76 | Malcolm W. Caldwell | 40 | Head | Senior Clerk | Scotland |
| 77 | Bertha L. Caldwell | 34 | Wife | — | Canada Eng |
| 78 | Jean Caldwell | 9 | Daughter | — | Massachusetts |
| 79 | Malcolm Caldwell | 5 | Son | — | Massachusetts |
| 80 | Bruce Caldwell | 2 | Son | — | Massachusetts |
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)