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Louis Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Louis Thomas across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 7-person household.
Age 45
b. ~1895
Male
Head
Born: Russia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Thomas |
| Given Name | Louis S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Russia |
| 1935 Residence (City) | Maryland |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | 62 |
| Industry | Manager |
| Class of Worker | Chain Grocery Store |
| Highest Grade | No 8 |
| 1935 Residence | Maryland |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
| Occupation | 62 |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1895 |
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 Louis | Age | Birth yr |
|---|---|---|---|---|
| Joseph Thomas | Son | — | 5 | ~1935 |
| John Thomas | Son | — | 16 | ~1924 |
| Lena Thomas | Spouse | — | 38 | ~1902 |
| Rosa Stahl | Daughter | — | 64 | ~1876 |
| Marlene Thomas | Daughter | — | 4 | ~1936 |
| Louis Thomas | Head | — | 45 | ~1895 |
| Christiana Potz | Daughter | — | 36 | ~1904 |
Census Appearances
1930
Baltimore, Maryland
Head, age 35
Baltimore, Maryland · implied b. ~1895 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Russia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | Salesman |
| Industry | Shoes |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Russian |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
1940
Baltimore-City-County, Maryland
Head, age 45
Baltimore-City-County, Maryland · implied b. ~1895 — 7 household members
| Surname | Thomas |
| Given Name | Louis S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Russia |
| 1935 Residence (City) | Maryland |
| Naturalization Status | Naturalized |
| Occupation | 62 |
| Industry | Manager |
| Class of Worker | Chain Grocery Store |
| Highest Grade | No 8 |
| 1935 Residence | Maryland |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
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 Louis Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louis Thomas
Head · 1940 · age 45 · b. ~1895 · 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 — 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-t0627-01539-00168)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jo Ann Trott | 8 | Daughter | — | Maryland |
| 42 | John Jr. Trott | 5 | Son | — | Maryland |
| 43 | Joseph A. Brooks | 40 | Head | Finger Print Expert | Maryland |
| 44 | Marie N. Brooks | 38 | Wife | — | Germany |
| 45 | Eleanor M. Brooks | 16 | Daughter | — | Maryland |
| 46 | Anna Frances Brooks | 12 | Daughter | — | Maryland |
| 47 | Joseph A. Jr. Brooks | 10 | Son | — | Maryland |
| 48 | William Thomas Brooks | 7 | Son | — | Maryland |
| 49 | Caroline Patricia Brooks | 4 | Daughter | — | Maryland |
| 50 | Oscar B. Palmer | 52 | Head | Auto Mechanic | Maryland |
| 51 | Laura L. Palmer | 29 | Daughter | Secretary | Maryland |
| 52 | Louis S. Thomas THIS PERSON | 45 | Head | 62 | Russia |
| 53 | Lena Thomas | 38 | Wife | — | Maryland |
| 54 | John J. Thomas | 16 | Son | — | Maryland |
| 55 | Joseph Thomas | 5 | Son | — | Maryland |
| 56 | Marlene Thomas | 4 | Daughter | — | Maryland |
| 57 | Rosa Stahl | 64 | Daughter | — | Germany |
| 58 | Christiana Potz | 36 | Daughter | — | Maryland |
| 59 | Joseph S. Carey | 33 | Head | Credit Manager | Maryland |
| 60 | Elizabeth B. Carey | 34 | Wife | — | Maryland |
| 61 | Mother Wallerga | None | F | — | — |
| 62 | Roger S. Baysicker | 47 | Head | Mill Manager | Maine |
| 63 | Anne W. Baysicker | 41 | Wife | — | England |
| 64 | Warren W. Baysicker | 19 | Son | — | Massachusetts |
| 65 | George T. Burroughs | 59 | Head | Assistant Stevedore | Maryland |
| 66 | Bertha Burroughs | 52 | Wife | — | Maryland |
| 67 | Kenneth E. Noledano | 30 | Head | Foreman | New York |
| 68 | Matilda A. Noledano | 30 | Wife | — | New York |
| 69 | Patricia A. Noledano | 2 | Daughter | — | Maryland |
| 70 | James M. Renshaw | 20 | Head | Auto Mechanic | Maryland |
| 71 | Luvie S. Renshaw | 26 | Wife | — | Massachusetts |
| 72 | Walter Mell | 28 | Head | Postman | Maryland |
| 73 | Eleanor H. Mell | 26 | Wife | Clerk | Maryland |
| 74 | Charles A. Bradwell | 52 | Head | Shearman | Pennsylvania |
| 75 | Mary Bradwell | 46 | Wife | — | Pennsylvania |
| 76 | Mary Lucille Bradwell | 27 | Daughter | Stenographer | Pennsylvania |
| 77 | Mabel Florence Bradwell | 23 | Daughter | Comptometer | Pennsylvania |
| 78 | William T. Willis | 70 | Head | Principal | Maryland |
| 79 | Clara M. Willis | 31 | Wife | — | Maryland |
| 80 | Albert B. Peters | 36 | Head | Machinist | 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)