TM
Thomas Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Thomas Martin across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents William & William — first a head (b.~1904), then head of a 4-person household.
Age 36
b. ~1904
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Martin |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore city |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Engineer |
| Industry | Construction Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 87 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Engineer |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1904 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Martin | Head | — | 36 | ~1904 |
| Thomas Martin | Son | — | 16 | ~1924 |
| William Martin | Son | — | 13 | ~1927 |
| Virginia Martin | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Baltimore, Maryland
Son, age 16
Baltimore, Maryland · implied b. ~1904 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Thomas B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Repairman |
| Industry | Automobiles |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 25
Baltimore, Maryland · implied b. ~1905 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Thomas F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Engineer |
| Industry | Steam shovel |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 36
Baltimore-City-County, Maryland · implied b. ~1904 — 4 household members
| Surname | Martin |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore city |
| 1935 Residence (County) | Baltimore City |
| Occupation | Engineer |
| Industry | Construction Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 87 |
| Highest Grade | Hs 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 Thomas Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Martin (~0.92 confidence) and father William Martin (~0.92 confidence) and mother Mary Martin (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Martin
b. ~1870
Source father
● Household
· direct · ~0.92
Father
William Martin
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Mary Martin
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Martin
Head · 1940 · age 36 · b. ~1904 · Maryland
★ You are viewing this record
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-t0627-01542-00397)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Aloysius Jr. | 8 | Son | — | Maryland |
| 2 | Alice Murphy | 50 | Aunt | — | Maryland |
| 3 | Ellen Murphy | 73 | Aunt | — | Maryland |
| 4 | Ewald A. Hunt | 50 | Head | Salesman | Maryland |
| 5 | Edith M. Hunt | 44 | Wife | Manager | Maryland |
| 6 | Maud Francis Hunt | 40 | Sister-in-law | Salesman | Virginia |
| 7 | Gene A. Hunt | 19 | Niece | — | New Jersey |
| 8 | William J. Gray | 56 | Head | Engineer | Maryland |
| 9 | Anne G. Gray | 56 | Wife | — | Maryland |
| 10 | Joseph M. Anderson | 60 | Head | Dealer | Maryland |
| 11 | Lucy E. Anderson | 57 | Wife | — | Maryland |
| 12 | Joseph M. Anderson | 18 | Son | Clerk | Maryland |
| 13 | Richard N. Anderson | 12 | Son | — | Maryland |
| 14 | Herbert Pendleton | 22 | Head | Salesman | New York |
| 15 | Dorothy Pendleton | 23 | Wife | — | New Mexico |
| 16 | Michael Pendleton | 2 | Son | — | Maryland |
| 17 | Albert S. Weaver | 45 | Head | Nurse | Maryland |
| 18 | Albert Weaver | 21 | Son | Mechanic | Maryland |
| 19 | Thomas Martin THIS PERSON | 36 | Head | Engineer | Maryland |
| 20 | Virginia Martin | 31 | Wife | — | Maryland |
| 21 | William Martin | 13 | Son | — | Maryland |
| 22 | Thomas Martin | 16 | Son | — | Maryland |
| 23 | Eugene C. Wallace | 28 | Head | Truck Driver | Maryland |
| 24 | Mary L. Wallace | 28 | Wife | — | Maryland |
| 25 | Helene G. Wallace | 18 | Daughter | — | Maryland |
| 26 | Amos J. Jones | 47 | Head | — | Maryland |
| 27 | Error | None | — | — | — |
| 28 | Clarence Jones | 39 | Son | Carpenter | Maryland |
| 29 | Harvey Gorsuch | 29 | Head | Salesman | Maryland |
| 30 | Beatrice Gorsuch | 20 | Daughter | — | Maryland |
| 31 | John Walter Carroll | 25 | Head | Chauffeur | Maryland |
| 32 | Lillian T. Carroll | 27 | Wife | — | Maryland |
| 33 | Emma J. Mursch | 74 | Head | — | Pennsylvania |
| 34 | George H. Morrell | 53 | Head | Salesman | Maryland |
| 35 | Gertrude A. Morrell | 45 | Wife | — | Maryland |
| 36 | Phyllis E. Morrell | 13 | Daughter | — | Maryland |
| 37 | Rudolph G. Morrell | 10 | Son | — | Maryland |
| 38 | Chrystal M. Arnold | 65 | Mother | — | England |
| 39 | Joseph Clarke | 55 | Head | Salesman | Maryland |
| 40 | Clarke | 49 | Wife | — | Maryland |
Related Census Records
Pedigree Summary
Thomas
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)