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Robert Hudson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Robert Hudson across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 11-person household.
Age 27
b. ~1913
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Hudson |
| Given Name | Robert H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Medford |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | General |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 780 |
| Highest Grade | C 2 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | General |
| Township / Ward | Medford |
| Est. Birth Year | ~1913 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Mildred Hudson | Daughter | — | 24 | ~1916 |
| Mary Hudson | Daughter | — | 21 | ~1919 |
| Margaret Hudson | Daughter | — | 14 | ~1926 |
| Robert Hudson | Son | — | 27 | ~1913 |
| Gertrude Hudson | Daughter | — | 25 | ~1915 |
| Ralph Hudson | Son | — | 28 | ~1912 |
| Jane Hudson | Spouse | — | 53 | ~1887 |
| Harvey Hudson | Son | — | 21 | ~1919 |
| Robert Hudson | Other | — | 1 | ~1939 |
| James Hudson | Son | — | 17 | ~1923 |
| Albert Hudson | Head | — | 60 | ~1880 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 17
Middlesex, Massachusetts · implied b. ~1913 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hudson |
| Given Name | Robert H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 27
Middlesex-County, Massachusetts · implied b. ~1913 — 11 household members
| Surname | Hudson |
| Given Name | Robert H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Medford |
| 1935 Residence (County) | Middlesex |
| Occupation | General |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 780 |
| Highest Grade | C 2 |
| 1935 Residence | Same Place |
| 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 Robert Hudson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Hudson
Son · 1940 · age 27 · b. ~1913 · Massachusetts
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Sibling
Mary Hudson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Hudson
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Hudson
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Hudson
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Hudson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harvey Hudson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Hudson
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01612-00622)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albert H. Hudson | 60 | Head | Carpenter | Canada |
| 2 | Jane C. Hudson | 53 | Wife | — | English |
| 3 | Ralph H. Hudson | 28 | Son | Solicitor | Massachusetts |
| 4 | Robert H. Hudson THIS PERSON | 27 | Son | General | Massachusetts |
| 5 | Gertrude B. Hudson | 25 | Daughter | Secretary | Massachusetts |
| 6 | Mildred R. Hudson | 24 | Daughter | — | English |
| 7 | Harvey P. Hudson | 21 | Son | Laborer | Maine |
| 8 | James H. Hudson | 17 | Son | — | Maine |
| 9 | Margaret J. Hudson | 14 | Daughter | — | Massachusetts |
| 10 | Mary S. Hudson | 21 | Daughter | — | New York |
| 11 | Robert H. Hudson | 1 | Grand-son | — | New York |
| 12 | Elizabeth F. Bean | 71 | Head | — | Massachusetts |
| 13 | Frederick E. Bean | 38 | Son | Foreman | Massachusetts |
| 14 | Dennis E. Bodah | 60 | Head | Supervisor | New York |
| 15 | Alice Q. Bodah | 57 | Wife | — | Massachusetts |
| 16 | Adeline F. Bodah | 26 | Daughter | Clerk | Massachusetts |
| 17 | Walter H. Mclenathan | 51 | Head | Locomotive Fireman | New Hampshire |
| 18 | Doris S. Mclenathan | 43 | Wife | Teller | Maine |
| 19 | John P. Bokeyn | 19 | Step-son | Machinist Apprentice | Massachusetts |
| 20 | Mark J. Dandero | 55 | Head | Clerk | Michigan |
| 21 | Laura Dandero | 48 | Wife | — | Massachusetts |
| 22 | Mark J. Jr. Dandero | 27 | Son | Salesman | Massachusetts |
| 23 | Norman C. Dandero | 21 | Son | — | Massachusetts |
| 24 | Allen P. Dandero | 17 | Son | — | Massachusetts |
| 25 | Fannie E. Watson | 72 | Head | — | Maine |
| 26 | Marion E. Watson | 50 | Daughter | — | Massachusetts |
| 27 | Ellen Griffin | 60 | Head | Matron | Massachusetts |
| 28 | Josephine Griffin | 31 | Daughter | Secretary | Massachusetts |
| 29 | Margaret F. O'Brien | 75 | Sister | — | Massachusetts |
| 30 | Frederick B. Parks | 28 | Head | Field Engineer | Massachusetts |
| 31 | Eva B. Parks | 24 | Wife | — | English |
| 32 | William B. Nelson | 56 | Head | Sheet Metal Worker | Sweden |
| 33 | Agnes O. Nelson | 54 | Wife | — | Norway |
| 34 | John J. Callaghan | 36 | Head | Industrial Service Man | Massachusetts |
| 35 | Gladys F. Callaghan | 36 | Wife | — | Massachusetts |
| 36 | Mildred H. Piddell | 45 | Head | Secretary | Massachusetts |
| 37 | Minnie H. Piddell | 71 | Mother | — | Vermont |
| 38 | Richard C. Piddell | 18 | 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)