HW
Helen Walsh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Helen Walsh across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Walsh |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Frances Walsh | Daughter | — | 19 | ~1921 |
| Thelma Walsh | Daughter | — | 11 | ~1929 |
| Agnes Walsh | Daughter | — | 7 | ~1933 |
| Alma Walsh | Daughter | — | 16 | ~1924 |
| Katharine Walsh | Daughter | — | 5 | ~1935 |
| Helen Walsh | Daughter | — | 18 | ~1922 |
| Jefferson Walsh | Head | — | 40 | ~1900 |
| Patricia Walsh | Daughter | — | 2 | ~1938 |
| Jefferson Walsh | Son | — | 14 | ~1926 |
| Margaret Walsh | Spouse | — | 39 | ~1901 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 7
Baltimore, Maryland · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| 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
Daughter, age 18
Baltimore-City-County, Maryland · implied b. ~1922 — 10 household members
| Surname | Walsh |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | Hs 4 |
| 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 Helen Walsh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Walsh
Daughter · 1940 · age 18 · b. ~1922 · Maryland
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Sibling
Agnes Walsh
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alma Walsh
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Walsh
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Walsh
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jefferson Walsh
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katharine Walsh
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Walsh
Sibling · 1940 · age 19
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-t0627-01519-00483)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph Hoffmann | 14 | Son | — | Maryland |
| 42 | Ronald Hoffmann | 4 | Grandson | — | Maryland |
| 43 | Joan Mcculloch | 2 | Granddaughter | — | New York |
| 44 | William Jr. Ervin | 38 | Head | Police Probationer | Maryland |
| 45 | Elizabeth Ervin | 34 | Wife | — | New York |
| 46 | William J. 3Rd Ervin | 15 | Son | — | Maryland |
| 47 | Lila Ervin | 14 | Son | — | Maryland |
| 48 | Mary Ervin | 4 | Daughter | — | Maryland |
| 49 | William Sr. Ervin | 73 | Father | Hardwood Floor | Maryland |
| 50 | Stanley Wollenhlager | 45 | Head | Chauffeur | Maryland |
| 51 | Myrtle Wollenhlager | 43 | Wife | — | Maryland |
| 52 | Stanley Jr. Wollenhlager | 21 | Son | — | Maryland |
| 53 | Eleanor Wollenhlager | 19 | Daughter | — | Maryland |
| 54 | Herbert Wollenhlager | 18 | Son | Hand Work Shop | Maryland |
| 55 | Jeanette Wollenhlager | 15 | Daughter | — | Maryland |
| 56 | Donald Wollenhlager | 14 | Son | — | Maryland |
| 57 | Catharine Wollenhlager | 13 | Daughter | — | Maryland |
| 58 | Margaret Wollenhlager | 8 | Daughter | — | Maryland |
| 59 | Frances Wollenhlager | 7 | Daughter | — | Maryland |
| 60 | Ethel Wollenhlager | 5 | Daughter | — | Maryland |
| 61 | Stewart Wollenhlager | 2 | Son | — | Maryland |
| 62 | Jefferson Walsh | 40 | Head | Pipe Fitter | Maryland |
| 63 | Margaret Walsh | 39 | Wife | — | Maryland |
| 64 | Frances Walsh | 19 | Daughter | — | Maryland |
| 65 | Helen Walsh THIS PERSON | 18 | Daughter | — | Maryland |
| 66 | Alma Walsh | 16 | Daughter | — | Maryland |
| 67 | Jefferson Jr. Walsh | 14 | Son | — | Maryland |
| 68 | Thelma Walsh | 11 | Daughter | — | Maryland |
| 69 | Agnes Walsh | 7 | Daughter | — | Maryland |
| 70 | Katharine Walsh | 5 | Daughter | — | Maryland |
| 71 | Patricia Walsh | 2 | Daughter | — | Maryland |
| 72 | John C. Hettinger | 60 | Head | Motorman | Germany |
| 73 | Gertrude Hettinger | 56 | Wife | — | Hungary |
| 74 | John C. Jr. Hettinger | 29 | Son | — | Maryland |
| 75 | George Hettinger | 27 | Son | — | Maryland |
| 76 | Frederick Mundey | 33 | Head | Brewery Bottler | Maryland |
| 77 | Sophia Mundey | 26 | Wife | — | Maryland |
| 78 | Delores Mundey | 7 | Daughter | — | Maryland |
| 79 | Audrey Mundey | 5 | Daughter | — | Maryland |
| 80 | Frederick Jr. Mundey | 3 | Son | — | Maryland |
Related Census Records
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)