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Thomas Walsh — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Thomas Walsh across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Delia & William — first a son (b.~1910), then head of a 9-person household.
Age 30
b. ~1910
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Walsh |
| Given Name | Thomas S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Electrician |
| Industry | B. & O. R.R. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Electrician |
| Township / Ward | Baltimore |
| Est. Birth Year | ~1910 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Mary Forney | Daughter | — | 40 | ~1900 |
| Delia Walsh | Head | — | 64 | ~1876 |
| Ann Forney | Other | — | 9 | ~1931 |
| Walter Forney | Other | — | 19 | ~1921 |
| Paul Forney | Other | — | 14 | ~1926 |
| H Forney | Other | — | 17 | ~1923 |
| Walter Walsh | Son | — | 37 | ~1903 |
| Thomas Walsh | Son | — | 30 | ~1910 |
| William Walsh | Son | — | 27 | ~1913 |
Census Appearances
1920
Baltimore, Maryland
Son, age 9
Baltimore, Maryland · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | Thomas J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 19
Baltimore, Maryland · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | Thomas J. W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Chauffeur |
| Industry | Haul J. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 30
Baltimore-City-County, Maryland · implied b. ~1910 — 9 household members
| Surname | Walsh |
| Given Name | Thomas S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| 1935 Residence (County) | Baltimore City |
| Occupation | Electrician |
| Industry | B. & O. R.R. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | Hs 4 |
| 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 Walsh across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Delia Walsh (~0.92 confidence) and father William Walsh (~0.92 confidence) and father Wm Walsh (~0.92 confidence) and mother Ellen Walsh (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Delia Walsh
b. ~1876
Source mother
● Household
· direct · ~0.92
Father
William Walsh
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Wm Walsh
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Ellen Walsh
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Walsh
Son · 1940 · age 30 · b. ~1910 · Maryland
★ You are viewing this record
Sibling
Walter Walsh
Sibling · 1940 · age 37
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Forney
Sibling · 1940 · age 40
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Walsh
Sibling · 1940 · age 27
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-t0627-01531-00665)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Cora R. Holmes | 44 | Wife | — | Maryland |
| 2 | Harriett V. Holmes | 21 | Daughter | Bookkeeper | Maine |
| 3 | Iris C. Holmes | 16 | Daughter | — | North Carolina |
| 4 | George Holmes | 13 | Son | — | Maryland |
| 5 | Virginia Cowen | 77 | Mother in law | — | Maryland |
| 6 | Laura C. Cowen | 41 | Sister in law | Dressmaking | Maryland |
| 7 | Emma Forney | 49 | Head | — | Maryland |
| 8 | Mary Forney | 72 | Mother | — | Maryland |
| 9 | Nolan J. Thompson | 42 | Brother-in-law | Blacksmith | Virginia |
| 10 | Elsie Thompson | 40 | Sister | — | Maryland |
| 11 | Louis Nauman | 44 | Head | Mechanic | Maryland |
| 12 | Marie Nauman | 49 | Wife | — | Maryland |
| 13 | Murrey Tarlton | 18 | Step son | Repair Shop | Maryland |
| 14 | Reginald Tarlton | 24 | Step son | Chauffeur | Maryland |
| 15 | Bessie Tarlton | 24 | Daughter-in-law | — | Maryland |
| 16 | Lawrence J. Rogan | 82 | Head | Constable | Maryland |
| 17 | Annie Rogan | 72 | Wife | — | Maryland |
| 18 | Harry Polkoski | 49 | Head | Helper On Del. Truck | Maryland |
| 19 | Mamie Polkoski | 46 | Wife | — | Maryland |
| 20 | Louis Polkoski | 20 | Son | Elevator Operator | Maryland |
| 21 | Doris Polkoski | 15 | Daughter | — | Maryland |
| 22 | Sherley Thompson | 5 | Daughter | — | Maryland |
| 23 | Theresa M. Forney | 71 | Head | — | Maryland |
| 24 | Walter F. Forney | 42 | Son | Clerk | Maryland |
| 25 | William Ekas | 51 | Head | Laborer | Pennsylvania |
| 26 | Addie Ekas | 47 | Wife | — | Maryland |
| 27 | John Ekas | 25 | Son | Laborer | Maryland |
| 28 | Ruth Ekas | 22 | Daughter-in-law | Bookbinding | Maryland |
| 29 | William N. Eidman | 57 | Head | Milk Salesman | Maryland |
| 30 | Margaret Eidman | 49 | Wife | — | Maryland |
| 31 | William F. Guest | 74 | Father-in-law | — | Maryland |
| 32 | Delia Walsh | 64 | Head | — | Irish Free State |
| 33 | Walter P. Walsh | 37 | Son | Laborer | Maryland |
| 34 | Thomas S. Walsh THIS PERSON | 30 | Son | Electrician | Maryland |
| 35 | William J. Walsh | 27 | Son | Laborer | Maryland |
| 36 | Mary Forney | 40 | Daughter | Housekeeper | Maryland |
| 37 | Walter B. Forney | 19 | Grandson | Laborer | Maryland |
| 38 | H. Bernadette Forney | 17 | Granddaughter | — | Maryland |
| 39 | Paul E. Forney | 14 | Grandson | — | Maryland |
| 40 | Ann C. Forney | 9 | Granddaughter | — | Maryland |
Pedigree Summary
Thomas + 3 siblings
Gen 1 · 4 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)