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Thomas Wallace — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Thomas Wallace across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 8-person household.
Age 15
b. ~1925
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Wallace |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1925 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Nellie Wallace | Spouse | — | 48 | ~1892 |
| Francis Wallace | Son | — | 12 | ~1928 |
| Patrick Wallace | Head | — | 46 | ~1894 |
| Marie Wallace | Daughter | — | 13 | ~1927 |
| John Wallace | Son | — | 16 | ~1924 |
| Thomas Wallace | Son | — | 15 | ~1925 |
| Nellie Wallace | Daughter | — | 9 | ~1931 |
| Patrick Wallace | Son | — | 18 | ~1922 |
Census Appearances
1930
Baltimore, Maryland
Son, age 4
Baltimore, Maryland · implied b. ~1926 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | Thomas J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 15
Baltimore-City-County, Maryland · implied b. ~1925 — 8 household members
| Surname | Wallace |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Hours Worked | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| 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 Thomas Wallace across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Wallace
Son · 1940 · age 15 · b. ~1925 · Maryland
★ You are viewing this record
Sibling
Nellie Wallace
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Wallace
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Wallace
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Wallace
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Wallace
Sibling · 1940 · age 16
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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01517-00183)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Tiffett | 15 | Head | Night Watchman | Maryland |
| 2 | Lucine Tiffett | 62 | Lodger | — | Maryland |
| 3 | Bruno Schwemmer | 52 | Head | Cabinet Maker | Germany |
| 4 | Eugenie Schwemmer | 50 | Wife | — | Austria |
| 5 | Frederick H. Schwemmer | 25 | Son | Brewer | Maryland |
| 6 | Julius D. Schwemmer | 23 | Son | Helper | Maryland |
| 7 | Sylvia M. Schwemmer | 19 | Daughter | New Worker | Maryland |
| 8 | Martin Schwemmer | 17 | Son | New Worker | Maryland |
| 9 | Edwin Schwemmer | 16 | Son | — | Maryland |
| 10 | Josephine Schwemmer | 14 | Daughter | — | Maryland |
| 11 | John W. Schwemmer | 12 | Son | — | Maryland |
| 12 | James Noctor | 69 | Head | Chauffeur | Ireland |
| 13 | Mary Noctor | 70 | Wife | — | Ireland |
| 14 | James M. Noctor | 38 | Son | Ass'T Engineer | Maryland |
| 15 | Mary Hoffman | 35 | Daughter | — | Maryland |
| 16 | Mary E. Hoffman | 13 | Grand dau | — | Maryland |
| 17 | James E. Hoffman | 12 | Grand son | — | Maryland |
| 18 | Regina Link | 26 | Head | Stenographer | Maryland |
| 19 | John J. Young | 49 | Head | Paint-Foreman | Maryland |
| 20 | Agnes Young | 48 | Wife | — | Maryland |
| 21 | Jas. J. Young | 28 | Son | Manager | Maryland |
| 22 | John J. Young | 12 | Son | — | Maryland |
| 23 | Mary C. Burke | 65 | Mother in law | — | Maryland |
| 24 | John D. Mcgregor | 50 | Head | Engineer | Maryland |
| 25 | Loretta Mcgregor | 49 | Wife | Chambermaid | Maryland |
| 26 | Maurice Dinan | 70 | Head | Clerk | Maryland |
| 27 | James Cromwell | 73 | Lodger | — | Maryland |
| 28 | James Gillooly | 36 | Head | Crane Operator | Maryland |
| 29 | Virginia Gillooly | 23 | Wife | — | West Virginia |
| 30 | James Jr. Gillooly | 2 | Son | — | Maryland |
| 31 | Patrick Wallace | 46 | Head | Police Officer | Irish Free State |
| 32 | Nellie Wallace | 48 | Wife | — | Maryland |
| 33 | Patrick Jr. Wallace | 18 | Son | New Worker | Maryland |
| 34 | John Wallace | 16 | Son | — | Maryland |
| 35 | Thomas Wallace THIS PERSON | 15 | Son | — | Maryland |
| 36 | Marie Wallace | 13 | Daughter | — | Maryland |
| 37 | Francis Wallace | 12 | Son | — | Maryland |
| 38 | Nellie Wallace | 9 | Daughter | — | Maryland |
| 39 | Hubert Holland | 35 | Head | Metal Worker | Maryland |
| 40 | Esther Holland | 36 | Wife | — | 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)