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William Kirby — 1940 US Census Record
Linked across censuses1940 United States Federal Census · James-City-County, Virginia
Our Model Tree links this William Kirby across the 1930 and 1940 US Censuses in James-City-County, Virginia (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 7-person household.
Age 18
b. ~1922
Male
Son
Born: Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | James-City-County, Virginia |
| Surname | Kirby |
| Given Name | William P. Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Jamestown Magisterial District |
| 1935 Residence (County) | James City |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Jamestown Magisterial District |
| Est. Birth Year | ~1922 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mildred Kirby | Daughter | — | 19 | ~1921 |
| Maude Kirby | Spouse | — | 39 | ~1901 |
| Earl Kirby | Son | — | 23 | ~1917 |
| William Kirby | Son | — | 18 | ~1922 |
| William Kirby | Head | — | 52 | ~1888 |
| Lois Kirby | Daughter | — | 12 | ~1928 |
| Cecil Kirby | Son | — | 15 | ~1925 |
Census Appearances
1930
James, Virginia
Son, age 8
James, Virginia · implied b. ~1922 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kirby |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
James-City-County, Virginia
Son, age 18
James-City-County, Virginia · implied b. ~1922 — 7 household members
| Surname | Kirby |
| Given Name | William P. Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Jamestown Magisterial District |
| 1935 Residence (County) | James City |
| Income (1939) | 0 |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| 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 William Kirby across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Kirby
Son · 1940 · age 18 · b. ~1922 · Virginia
★ You are viewing this record
Sibling
Earl Kirby
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Kirby
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cecil Kirby
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Kirby
Sibling · 1940 · age 19
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 — James-City-County, Virginia
Open full size
1940 US Federal Census — James-City-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04271-00399)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bettie W. Walker | 34 | Wife | — | Virginia |
| 2 | Lawrence G. Walker | 9 | son | — | Virginia |
| 3 | Ann E. Walker | 5 | daughter | — | Virginia |
| 4 | Dorothy L. Walker | 2 | daughter | — | Virginia |
| 5 | Collin Jarrett | 51 | Head | Gateman | Virginia |
| 6 | Nancy Jarrett | 52 | Wife | Cook | Virginia |
| 7 | Mary Corling Mccrea | 55 | Head | — | Virginia |
| 8 | Ada M. Mccrea | 28 | daughter | — | Virginia |
| 9 | Void Void | None | Void | Void | Void |
| 10 | Ellsworth O. Wiley | 30 | Head | Movie Operator | West Virginia |
| 11 | Alva Wiley | 31 | Wife | — | Virginia |
| 12 | Eloise Wiley | 6 | daughter | — | Virginia |
| 13 | Ellsworth Jr. Wiley | 5 | son | — | Virginia |
| 14 | Beverley Wiley | 3 | daughter | — | Virginia |
| 15 | Patricia Wiley | 2 | daughter | — | Virginia |
| 16 | Vercel C. Lambert | 29 | Head | Manager | West Virginia |
| 17 | Sadie Lee Taylor | 55 | Head | — | Virginia |
| 18 | William E. Ripley | 40 | Head | Bus Driver | Virginia |
| 19 | Minnie K. Ripley | 36 | Wife | — | Virginia |
| 20 | Florence M. Ripley | 17 | daughter | Cafeteria Worker | Virginia |
| 21 | William E. Jr. Ripley | 15 | son | — | Virginia |
| 22 | John W. Ripley | 12 | son | — | Virginia |
| 23 | Kathrine N. Ripley | 10 | daughter | — | Virginia |
| 24 | Otto E. Ripley | 5 | son | — | Virginia |
| 25 | Virginia M. Ripley | 3 | daughter | — | Virginia |
| 26 | Thomas F. Ripley | 1 | son | — | Virginia |
| 27 | William P. Kirby | 52 | Head | Laborer | Virginia |
| 28 | Maude Kirby | 39 | Wife | — | Virginia |
| 29 | Earl Kirby | 23 | son | Plumber Helper | Virginia |
| 30 | Mildred Kirby | 19 | daughter | — | Virginia |
| 31 | William P. Jr. Kirby THIS PERSON | 18 | son | — | Virginia |
| 32 | Cecil Kirby | 15 | son | — | Virginia |
| 33 | Lois Kirby | 12 | daughter | — | Virginia |
| 34 | James W. Fletcher | 63 | Head | Farmer | Virginia |
| 35 | Anna L. Fletcher | 58 | Wife | — | Virginia |
| 36 | Laura M. Fletcher | 23 | daughter | — | Virginia |
| 37 | James A. Fletcher | 37 | son | Messenger | Virginia |
| 38 | George Jackson | 41 | Head | Farm Hand | Virginia |
| 39 | Clara Jackson | 38 | Wife | — | Virginia |
| 40 | Rosetta Roberts | 17 | daughter | Dishwasher | Virginia |
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)