JT
Julia Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Charles-County, Maryland
Our Model Tree links this Julia Thomas across the 1920, 1930 and 1940 US Censuses in Charles-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 3-person household.
Age 65
b. ~1875
Female
Head
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Charles-County, Maryland |
| Surname | Thomas |
| Given Name | Julia |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 65 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election Dist 9 |
| 1935 Residence (County) | Charles |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Election Dist 9 |
| Est. Birth Year | ~1875 |
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 Julia | Age | Birth yr |
|---|---|---|---|---|
| Julia Thomas | Head | — | 65 | ~1875 |
| John Thomas | Son | — | 42 | ~1898 |
| Joseph Thomas | Son | — | 38 | ~1902 |
Census Appearances
1920
Charles, Maryland
Other, age 48
Charles, Maryland · implied b. ~1872 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Josephine |
| Relationship to Head | Cook |
| Sex | F |
| Color / Race | Black |
| Age | 48 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Cook |
| Industry | Private family |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Charles, Maryland
Head, age 58
Charles, Maryland · implied b. ~1872 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Julia |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 58 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| Age at First Marriage | 17 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | No |
| Home Owned/Rented | O |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Charles-County, Maryland
Head, age 65
Charles-County, Maryland · implied b. ~1875 — 3 household members
| Surname | Thomas |
| Given Name | Julia |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 65 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election Dist 9 |
| 1935 Residence (County) | Charles |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Julia Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Julia Thomas
Head · 1940 · age 65 · b. ~1875 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Charles-County, Maryland
Open full size
1940 US Federal Census — Charles-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01546-00455)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Francis Jr. Schultz | 16 | Son | — | Maryland |
| 42 | Horace Williams | 17 | Lodger | — | Alabama |
| 43 | Clara Gildring | 22 | Servant | Cook | Maryland |
| 44 | Julia Thomas THIS PERSON | 65 | Head | — | Maryland |
| 45 | John H. Thomas | 42 | Son | Laborer | Maryland |
| 46 | Joseph H. Thomas | 38 | Son | Laborer | Maryland |
| 47 | Isaiah Ruden | 58 | Head | Laborer | Maryland |
| 48 | Estelle M. Ruden | 58 | Wife | — | Maryland |
| 49 | Stephen B. Ruden | 15 | Son | — | Maryland |
| 50 | Benj. J. Thomas | 64 | Head | — | Maryland |
| 51 | Alexander Locke | 65 | Head | Laborer | Maryland |
| 52 | Sophia Locke | 55 | Wife | — | Maryland |
| 53 | James M. Locke | 25 | Son | Laborer | Maryland |
| 54 | Edward Leo Locke | 22 | Son | Laborer | Maryland |
| 55 | Andrew Locke | 21 | Son | Laborer | Maryland |
| 56 | Margaret M. Locke | 17 | Daughter | — | Maryland |
| 57 | William Cooke | 52 | Head | Laborer | Maryland |
| 58 | Sara Cooke | 55 | Wife | — | Maryland |
| 59 | Francis A. Gardiner | 39 | Head | Building Road | Maryland |
| 60 | Ella May Gardiner | 34 | Wife | — | Maryland |
| 61 | Charles W. Gardiner | 15 | Son | — | Maryland |
| 62 | Francis B. Gardiner | 14 | Son | — | Maryland |
| 63 | Doris L. Gardiner | 11 | Daughter | — | Maryland |
| 64 | Joseph H. Gardiner | 9 | Son | — | Maryland |
| 65 | Mary Rose Gardiner | 7 | Daughter | — | Maryland |
| 66 | Thomas Tolla | 72 | Head | Operator | Hungary |
| 67 | Madaline Tolla | 63 | Wife | — | Hungary |
| 68 | Nicholas A. Tolla | 42 | Son | Operator | Hungary |
| 69 | John H. W. Matthews | 79 | Head | — | Maryland |
| 70 | Mary Ella Matthews | 64 | Wife | — | Maryland |
| 71 | George E. Matthews | 38 | Son | Carpenter | Maryland |
| 72 | Joseph L. Matthews | 31 | Son | Farm | Maryland |
| 73 | Sara C. Pickle | 87 | Mother-in-law | — | Maryland |
| 74 | Leroy Washington | 39 | Head | — | Maryland |
| 75 | Francis Washington | 19 | Son | Laborer | Maryland |
| 76 | Mary G. Washington | 12 | Daughter | — | Maryland |
| 77 | Philip Johnson | 65 | Lodger | — | Maryland |
| 78 | Philip Cole | 30 | Head | Laborer | Maryland |
| 79 | Theodore Jones | 21 | Lodger | Laborer | Maryland |
| 80 | Olivia Cole | 55 | Head | Midwife | 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)