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James Marsh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lawrence-County, South Dakota
Our Model Tree links this James Marsh across the 1930 and 1940 US Censuses in Lawrence-County, South Dakota (XGBoost, ~Confirmed) — first a head (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Male
Head
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lawrence-County, South Dakota |
| Surname | Marsh |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Lead City |
| 1935 Residence (County) | Lawrence |
| Additional Details | |
| Occupation | Laborer |
| Industry | Gold Mine |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1400 |
| Highest Grade | H-1 |
| 1935 Residence | Same Place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Laborer |
| Township / Ward | Lead City |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Marsh | Head | — | 21 | ~1919 |
| Alvira Marsh | Spouse | — | 21 | ~1919 |
| James Marsh | Son | — | 1 | ~1939 |
Census Appearances
1930
Lawrence, South …
Son, age 12
Lawrence, South Dakota · implied b. ~1918 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marsh |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | England |
| Mother's Birthplace | Iowa |
| Occupation | Caddie |
| Industry | Golf Course |
| Class of Worker | 927V |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Lawrence-County, South …
Head, age 21
Lawrence-County, South Dakota · implied b. ~1919 — 3 household members
| Surname | Marsh |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Lead City |
| 1935 Residence (County) | Lawrence |
| Occupation | Laborer |
| Industry | Gold Mine |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1400 |
| Highest Grade | H-1 |
| 1935 Residence | Same Place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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
Head · 1940 · age 21 · b. ~1919 · South Dakota
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lawrence-County, South Dakota
Open full size
1940 US Federal Census — Lawrence-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03860-00275)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ray Patterson | 35 | Head | Shaft Man | South Dakota |
| 2 | Frances Patterson | 30 | Wife | — | South Dakota |
| 3 | Clara D Patterson | 11 | Daughter | — | South Dakota |
| 4 | Robert Patterson | 6 | Son | — | South Dakota |
| 5 | James Marsh THIS PERSON | 21 | Head | Laborer | South Dakota |
| 6 | Alvira Marsh | 21 | Wife | — | South Dakota |
| 7 | James Jr. Marsh | 1 | Son | — | South Dakota |
| 8 | Wayne Moore | 29 | Head | Salesman | Nebraska |
| 9 | Ruth Moore | 28 | Wife | — | South Dakota |
| 10 | Delane Moore | 7 | Son | — | South Dakota |
| 11 | E. O. Berg | 48 | Head | Shift Boss | South Dakota |
| 12 | Helen Berg | 39 | Wife | — | South Dakota |
| 13 | Harry E. Billings | 65 | Head | — | Pennsylvania |
| 14 | Mary Billings | 62 | Wife | — | North Dakota |
| 15 | Harry R Billings | 24 | Son | — | South Dakota |
| 16 | Marion A Billings | 21 | Son | — | South Dakota |
| 17 | Ellen Glover | 81 | Head | — | England |
| 18 | John Johnson | 49 | Head | Mining Engineer | Indiana |
| 19 | Sara Johnson | 39 | Wife | — | Pennsylvania |
| 20 | Mary Louise Johnson | 15 | Daughter | — | South Dakota |
| 21 | Joan Johnson | 13 | Daughter | — | South Dakota |
| 22 | John Johnson | 12 | Son | — | South Dakota |
| 23 | Margaret Johnson | 5 | Daughter | — | South Dakota |
| 24 | Charles A. Beckley | 47 | Head | Filling Station Operator | Indiana |
| 25 | Mary Beckley | 47 | Wife | — | Indiana |
| 26 | Charles Beckley | 23 | Son | — | Indiana |
| 27 | Jo Ann Beckley | 19 | Daughter | — | Indiana |
| 28 | Joe Tom Beckley | 19 | Son | — | Indiana |
| 29 | Sherman Connor | 44 | Head | Miner | Illinois |
| 30 | Clayton Brothers | 29 | Head | Miner | South Dakota |
| 31 | Catherine Brothers | 26 | Wife | — | South Dakota |
| 32 | Jennette Brothers | 6 | Daughter | — | South Dakota |
| 33 | Walter Brothers | 2 | Son | — | South Dakota |
| 34 | Walter S. Green | 35 | Head | Bus Line Operator | South Dakota |
| 35 | Frances Green | 38 | Wife | Bookkeeper | South Dakota |
| 36 | August Hett | 49 | Head | Construction Foreman | South Dakota |
| 37 | Elizabeth Hett | 51 | Wife | — | Wisconsin |
| 38 | Wm B. Sage | 46 | Head | Helper On Diamond Drill | South Dakota |
| 39 | Inez Sage | 42 | Wife | — | Iowa |
| 40 | Billy Sage | 10 | Son | — | South Dakota |
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)