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James Mcdowell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Florida
Our Model Tree links this James Mcdowell across the 1930 and 1940 US Censuses in Polk-County, Florida (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 6-person household.
Age 18
b. ~1922
Male
Son
Born: Florida
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Florida |
| Surname | McDowell |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Florida |
| 1935 Residence (City) | Auburndale city |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
| Township / Ward | Auburndale City |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Marie Mcdowell | Spouse | — | 40 | ~1900 |
| Joseph Mcdowell | Son | — | 18 | ~1922 |
| Edwin Mcdowell | Son | — | 19 | ~1921 |
| Charles Mcdowell | Son | — | 15 | ~1925 |
| James Mcdowell | Son | — | 18 | ~1922 |
| Hubert Mcdowell | Head | — | 54 | ~1886 |
Census Appearances
1930
Polk, Florida
Son, age 8
Polk, Florida · implied b. ~1922 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDowell |
| Given Name | James G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1940
Polk-County, Florida
Son, age 18
Polk-County, Florida · implied b. ~1922 — 6 household members
| Surname | McDowell |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Florida |
| 1935 Residence (City) | Auburndale city |
| 1935 Residence (County) | Polk |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
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 Mcdowell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mcdowell
Son · 1940 · age 18 · b. ~1922 · Florida
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Sibling
Charles Mcdowell
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edwin Mcdowell
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mcdowell
Sibling · 1940 · age 18
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 — Polk-County, Florida
Open full size
1940 US Federal Census — Polk-County, Florida
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00612-00500)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hubert Mcdowell | 54 | Head | Salesman | Virginia |
| 2 | Marie Mcdowell | 40 | Wife | Stenographer | Virginia |
| 3 | Joseph Mcdowell | 18 | Son | — | Florida |
| 4 | James Mcdowell THIS PERSON | 18 | Son | — | Florida |
| 5 | Edwin Mcdowell | 19 | Son | — | Florida |
| 6 | Charles Mcdowell | 15 | Son | — | Florida |
| 7 | Robert C. Mcdowell | 56 | Head | Labor | W. Virginia |
| 8 | Sarah D. Mcdowell | 47 | Wife | — | W. Virginia |
| 9 | Mary I. Mcdowell | 21 | Daughter | School Teacher | W. Virginia |
| 10 | Sarah J. Mcdowell | 18 | Daughter | Book-Keeper | W. Virginia |
| 11 | Betty Lou Mcdowell | 10 | Daughter | — | Florida |
| 12 | Julia C. Keffer | 83 | Head | — | Pennsylvania |
| 13 | Flora G. Keffer | 70 | Partner | — | New Jersey |
| 14 | Ralph Allen | 58 | Head | Bee-Keeping | Illinois |
| 15 | Pearl Allen | 60 | Wife | — | Illinois |
| 16 | John Allen | 23 | Son | — | Florida |
| 17 | James W. Jenkins | 32 | Head | Mechanic | Georgia |
| 18 | Helen Jenkins | 24 | Wife | — | Georgia |
| 19 | Betty Jenkins | 7 | Daughter | — | Georgia |
| 20 | Launa Jenkins | 4 | Daughter | — | Georgia |
| 21 | Mary Louise Jenkins | 1 | Daughter | — | Florida |
| 22 | Ernest Stowe | 74 | Head | — | New York |
| 23 | Katherine Stowe | 60 | Wife | — | New York |
| 24 | Thomas L. Casey | 55 | Head | Telegraph Operator | Illinois |
| 25 | Delphia M. Casey | 45 | Wife | — | Indiana |
| 26 | Paul Casey | 26 | Son | Agent Operator | Oklahoma |
| 27 | Patsy Casey | 18 | Daughter | — | Oklahoma |
| 28 | Thomas L. Casey | 14 | Son | — | Illinois |
| 29 | Mary Alice Casey | 10 | Daughter | — | Florida |
| 30 | Phillip Ehemann | 55 | Head | Operator Dry Goods Store | Germany |
| 31 | Laura M. Ehemann | 52 | Wife | — | Illinois |
| 32 | Zeb H. Mangum | 62 | Head | — | South Carolina |
| 33 | Lula Mangum | 61 | Wife | — | South Carolina |
| 34 | John M. Young | 39 | Head | Truck Driver | Florida |
| 35 | Eva Young | 41 | Wife | — | Massachusetts |
| 36 | Ruth Young | 10 | Daughter | — | California |
| 37 | David Young | 8 | Son | — | Massachusetts |
| 38 | Walter Wales | 25 | Head | Grove Operator | Ohio |
| 39 | Velma Wales | 32 | Wife | — | Maine |
| 40 | Michael Weber | 63 | Head | Farmer | Pennsylvania |
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)