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James Mcmanus — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this James Mcmanus across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 9-person household.
Age 21
b. ~1919
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | McManus |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | 48 |
| Industry | Store Clerk |
| Class of Worker | Retail Grocery |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | 48 |
| Township / Ward | Natick |
| Est. Birth Year | ~1919 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Anna Mcmanus | Daughter | — | 16 | ~1924 |
| Annie Mcmanus | Other | — | 83 | ~1857 |
| James Mcmanus | Son | — | 21 | ~1919 |
| Robert Mcmanus | Son | — | 10 | ~1930 |
| John Mcmanus | Son | — | 18 | ~1922 |
| Elizabeth Mcmanus | Spouse | — | 51 | ~1889 |
| William Mcmanus | Head | — | 58 | ~1882 |
| Irene Mcmanus | Daughter | — | 14 | ~1926 |
| Helen Mcmanus | Daughter | — | 25 | ~1915 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1919 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McManus |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 21
Middlesex-County, Massachusetts · implied b. ~1919 — 9 household members
| Surname | McManus |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Middlesex |
| Occupation | 48 |
| Industry | Store Clerk |
| Class of Worker | Retail Grocery |
| Highest Grade | Hs 4 |
| 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 James Mcmanus across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mcmanus
Son · 1940 · age 21 · b. ~1919 · Massachusetts
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Sibling
Helen Mcmanus
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mcmanus
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcmanus
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Mcmanus
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Mcmanus
Sibling · 1940 · age 16
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
40 people indexed on this census page (nara:1940:m-t0627-01613-00998)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Patricia Branigan | 3 | Daughter | — | Massachusetts |
| 42 | Joan M. Branigan | 2 | Daughter | — | Massachusetts |
| 43 | Mary A. Fitzgerald | 79 | Aunt | — | Massachusetts |
| 44 | Fritz O. Dahlgren | 45 | Head | Tool Maker | Sweden |
| 45 | Eva A. Dahlgren | 45 | Wife | — | Sweden |
| 46 | Alice Dahlgren | 22 | Daughter | Filing Clerk | Sweden |
| 47 | Victor Dahlgren | 16 | Son | — | Massachusetts |
| 48 | Helen Dahlgren | 12 | Daughter | — | Massachusetts |
| 49 | James B. Coffin | 30 | Head | 57 | Massachusetts |
| 50 | Catherine P. Coffin | 29 | Wife | — | Massachusetts |
| 51 | James Jr. Coffin | 4 | Son | — | Massachusetts |
| 52 | William A. Collins | 45 | Head | 44 | Massachusetts |
| 53 | Frances A. Collins | 46 | Wife | — | Massachusetts |
| 54 | Russell B. Collins | 23 | Son | 44 | Massachusetts |
| 55 | Hazel T. Collins | 17 | Daughter | — | Massachusetts |
| 56 | Doris E. Collins | 12 | Daughter | — | Massachusetts |
| 57 | William J. Spinney | 46 | Head | 54 | Massachusetts |
| 58 | Catherine Spinney | 44 | Wife | — | Massachusetts |
| 59 | Mary J. Spinney | 16 | Daughter | — | Massachusetts |
| 60 | George F. Spinney | 14 | Son | — | Massachusetts |
| 61 | Ruth E. Spinney | 11 | Daughter | — | Massachusetts |
| 62 | Walter Des Marais | 46 | Head | 40 | Massachusetts |
| 63 | Florence Des Marais | 43 | Wife | 40 | Massachusetts |
| 64 | Raymond Des Marais | 23 | Son | 40 | Massachusetts |
| 65 | Daniel Des Marais | 15 | Son | — | Massachusetts |
| 66 | Joseph Des Marais | 22 | Son | 42 | Massachusetts |
| 67 | Marguerite Des Marais | 25 | Daughter-in-law | — | Massachusetts |
| 68 | Joan Des Marais | 0 | Granddaughter | — | Massachusetts |
| 69 | William E. Mcmanus | 58 | Head | 44 | Massachusetts |
| 70 | Elizabeth A. Mcmanus | 51 | Wife | — | Massachusetts |
| 71 | Helen Mcmanus | 25 | Daughter | 40 | Massachusetts |
| 72 | James Mcmanus THIS PERSON | 21 | Son | 48 | Massachusetts |
| 73 | John Mcmanus | 18 | Son | 36 | Massachusetts |
| 74 | Anna Mcmanus | 16 | Daughter | — | Massachusetts |
| 75 | Irene Mcmanus | 14 | Daughter | — | Massachusetts |
| 76 | Robert Mcmanus | 10 | Son | — | Massachusetts |
| 77 | Annie Mcmanus | 83 | Mother | — | Eire |
| 78 | Margaret M. Bremner | 57 | Head | — | Pennsylvania |
| 79 | Carl A. Bremner | 27 | Son | 44 | Massachusetts |
| 80 | Harold E. Bremner | 25 | Son | 38 | Massachusetts |
Related Census Records
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)