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James Sweeney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fairfax-County, Virginia
Our Model Tree links this James Sweeney across the 1930 and 1940 US Censuses in Fairfax-County, Virginia (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 9-person household.
Age 16
b. ~1924
Male
Son
Born: Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Fairfax-County, Virginia |
| Surname | Sweeney |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Fort Belvoir |
| Additional Details | |
| Highest Grade | No 0 |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Fort Belvoir |
| Est. Birth Year | ~1924 |
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 |
|---|---|---|---|---|
| Martha Sweeney | Daughter | — | 8 | ~1932 |
| Harry Sweeney | Head | — | 56 | ~1884 |
| Warren Sweeney | Son | — | 18 | ~1922 |
| James Sweeney | Son | — | 16 | ~1924 |
| William Sweeney | Son | — | 10 | ~1930 |
| Herbert Sweeney | Son | — | 14 | ~1926 |
| Robert Sweeney | Son | — | 12 | ~1928 |
| Richard Sweeney | Son | — | 22 | ~1918 |
| Sarah Sweeney | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Fairfax, Virginia
Son, age 6
Fairfax, Virginia · implied b. ~1924 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | James S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | New Jersey |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Fairfax-County, Virginia
Son, age 16
Fairfax-County, Virginia · implied b. ~1924 — 9 household members
| Surname | Sweeney |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Fort Belvoir |
| Highest Grade | No 0 |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Sweeney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Sweeney
Son · 1940 · age 16 · b. ~1924 · Virginia
★ You are viewing this record
Sibling
Robert Sweeney
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Warren Sweeney
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Sweeney
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Sweeney
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Sweeney
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Sweeney
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 — Fairfax-County, Virginia
Open full size
1940 US Federal Census — Fairfax-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04261-00804)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clyde A. Huffstickler | 44 | Head | Soldier | No. Carolina |
| 2 | Pearl Huffstickler | 45 | Wife | — | Texas |
| 3 | Martha N. Huffstickler | 14 | Daughter | — | Texas |
| 4 | Albert C. Huffstickler | 12 | Son | — | Texas |
| 5 | Jack D. Huffstickler | 10 | Son | — | Texas |
| 6 | Stanley H. Walker | 42 | Head | Soldier | Michigan |
| 7 | Pearl E. Walker | 48 | Wife | — | Pennsylvania |
| 8 | Wilmot R. Mccutchen | 23 | Head | Officer | So. Carolina |
| 9 | Richard J. Morgan | 20 | Head | Soldier | Pennsylvania |
| 10 | Ralph S. Anthony | 20 | Head | Soldier | Pennsylvania |
| 11 | John W. Albright | 23 | Head | Soldier | Pennsylvania |
| 12 | Harry A. Sweeney | 56 | Head | Soldier | Kentucky |
| 13 | Sarah L. Sweeney | 50 | Wife | — | New Jersey |
| 14 | Richard G. Sweeney | 22 | Son | Truck Driver | D.C. |
| 15 | Warren H. Sweeney | 18 | Son | Deliveryman | D.C. |
| 16 | James Sweeney THIS PERSON | 16 | Son | — | Virginia |
| 17 | Herbert Sweeney | 14 | Son | Delivery Boy | D.C. |
| 18 | Robert H. Sweeney | 12 | Son | — | D.C. |
| 19 | William C. Sweeney | 10 | Son | — | D.C. |
| 20 | Martha E. Sweeney | 8 | Daughter | — | D.C. |
| 21 | Chalon E. Smith | 51 | Head | Soldier | Iowa |
| 22 | Francis B. Cummings | 25 | Head | Soldier | Maine |
| 23 | James W. Free | 24 | Head | Soldier | Mississippi |
| 24 | Gloria S. Free | 27 | Wife | — | Texas |
| 25 | Jimmie Lou Free | 6 | Daughter | — | Texas |
| 26 | Joseph E. Veale | 29 | Head | Officer | Georgia |
| 27 | Helen C. Veale | 32 | Wife | — | D.C. |
| 28 | John M. Cromelin | 27 | Head | Officer | England |
| 29 | Phoebe R. Cromelin | 24 | Wife | — | Oregon |
| 30 | William S. Sr. Williams | 25 | Head | Officer | Kentucky |
| 31 | Thomas W. Sr. Webb | 22 | Head | Officer | Alabama |
| 32 | John H. Tatman | 23 | Head | Soldier | Maryland |
| 33 | Anthony J. Goudemand | 28 | Head | Soldier | Holland |
| 34 | Peter G. Maindanis | 25 | Head | Soldier | Florida |
| 35 | Boyd W. Hood | 25 | Head | Soldier | Virginia |
| 36 | John A. Defassio | 20 | Head | Soldier | Pennsylvania |
| 37 | Jack C. Bargstresser | 21 | Head | Soldier | Pennsylvania |
| 38 | Aela W. Gragery | 20 | Head | Soldier | So. Carolina |
| 39 | Wendall A. Valiment | 18 | Head | Soldier | Pennsylvania |
| 40 | Joseph E. Norris | 19 | Head | Soldier | Maryland |
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)