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James Marsh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this James Marsh across the 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Marsh |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Danvers Town |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Hours Worked | 16 |
| Highest Grade | C 2 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Danvers Town |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Jasper Marsh | Head | — | 65 | ~1875 |
| John Marsh | Son | — | 19 | ~1921 |
| Anna Marsh | Spouse | — | 63 | ~1877 |
| Catherine Dudley | Other | — | 38 | ~1902 |
| James Marsh | Son | — | 21 | ~1919 |
| Mary Marsh | Daughter | — | 22 | ~1918 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 11
Suffolk, Massachusetts · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marsh |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Son, age 21
Essex-County, Massachusetts · implied b. ~1919 — 6 household members
| Surname | Marsh |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Danvers Town |
| 1935 Residence (County) | Essex |
| Hours Worked | 16 |
| 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 James Marsh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Marsh
Son · 1940 · age 21 · b. ~1919 · Massachusetts
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Sibling
John Marsh
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Marsh
Sibling · 1940 · age 22
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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01578-00654)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jasper Marsh | 65 | Head | Manufacturer | Massachusetts |
| 42 | Anna Marsh | 63 | Wife | — | Massachusetts |
| 43 | Mary Marsh | 22 | Daughter | Teacher | Massachusetts |
| 44 | James Marsh THIS PERSON | 21 | Son | — | Massachusetts |
| 45 | John Marsh | 19 | Son | — | Massachusetts |
| 46 | Catherine Dudley | 38 | Servant | Housekeeper | Irish Free State |
| 47 | Charles H. Logan | 65 | Head | Nursery Expert | New Hampshire |
| 48 | Hattie W. Logan | 60 | Wife | — | Massachusetts |
| 49 | Harry A. Jackson | 57 | Head | Supervisor Of Drafting | Wisconsin |
| 50 | Dinah G. Jackson | 57 | Wife | — | England |
| 51 | Raymond Duffill | 30 | Head | Salesman | Massachusetts |
| 52 | Elizabeth Duffill | 28 | Wife | — | Massachusetts |
| 53 | Elizabeth Duffill | 4 | Daughter | — | Massachusetts |
| 54 | Mary Duffill | 2 | Daughter | — | Massachusetts |
| 55 | John Duffill | 30 | Head | Poultry Expert | Massachusetts |
| 56 | Virginia Duffill | 24 | Wife | — | Massachusetts |
| 57 | John Jr. Duffill | 2 | Son | — | Massachusetts |
| 58 | Herbert N. Barnaby | 69 | Head | Stationary Engineer | New Hampshire |
| 59 | Mary A. Barnaby | 79 | Wife | — | Massachusetts |
| 60 | Richard E. Warman | 32 | Head | Baker | Massachusetts |
| 61 | Grace Warman | 34 | Wife | — | Massachusetts |
| 62 | Judith Warman | 3 | Daughter | — | Massachusetts |
| 63 | Kenneth Eaton | 37 | Head | Laborer | Massachusetts |
| 64 | Estelle Eaton | 36 | Wife | — | Canada English |
| 65 | Gordon Eaton | 15 | Son | — | Massachusetts |
| 66 | Barbara Eaton | 13 | Daughter | — | Massachusetts |
| 67 | Patricia Eaton | 7 | Daughter | — | Massachusetts |
| 68 | Marilyn Eaton | 3 | Daughter | — | Massachusetts |
| 69 | Vernon Bickwell | 31 | Head | Laborer | Massachusetts |
| 70 | Gertrude Bickwell | 24 | Wife | Shipping Clerk | Massachusetts |
| 71 | Adeline Miller | 31 | Lodger | Laborer | Canada English |
| 72 | Alfred Wilkins | 43 | Lodger | Laborer | Massachusetts |
| 73 | Frederick E. Marsh | 64 | Head | Laborer | Massachusetts |
| 74 | Mary Marsh | 51 | Wife | — | New York |
| 75 | Frederick Marsh | 26 | Son | Laborer | New York |
| 76 | Ida M. Marsh | 22 | Daughter | Lule Worker | Massachusetts |
| 77 | Marguerite Marsh | 19 | Daughter | Lule Worker | Massachusetts |
| 78 | Martha Marsh | 17 | Daughter | — | Massachusetts |
| 79 | Frederick Long | 70 | Head | — | Massachusetts |
| 80 | Lucy Long | 76 | Wife | — | 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)