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Walter Cook — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this Walter Cook across the 1920, 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1899), then head of a 10-person household.
Age 41
b. ~1899
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Cook |
| Given Name | Walter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Unincorporated place: Fairlawn, Dundalk, St. Helena (part) |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Occupation | ruffler |
| Industry | hot mill |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 2106 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Ruffler |
| Township / Ward | Unincorporated Place Fairlawn Dundalk St Helena Part |
| Est. Birth Year | ~1899 |
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 Walter | Age | Birth yr |
|---|---|---|---|---|
| Walter Cook | Head | — | 41 | ~1899 |
| Edwina Cook | Daughter | — | 8 | ~1932 |
| Cecelia Cook | Daughter | — | 6 | ~1934 |
| Frank Cook | Son | — | 13 | ~1927 |
| Stanley Cook | Son | — | 10 | ~1930 |
| Helen Cook | Daughter | — | 2 | ~1938 |
| Marcella Cook | Daughter | — | 5 | ~1935 |
| Lottie Cook | Daughter | — | 11 | ~1929 |
| Mary Cook | Spouse | — | 31 | ~1909 |
| Walter Cook | Son | — | 7 | ~1933 |
Census Appearances
1920
Baltimore, Maryland
Other, age 21
Baltimore, Maryland · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Walter |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | Rougher |
| Industry | Tin plate mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Baltimore, Maryland
Head, age 31
Baltimore, Maryland · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Walter M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 27 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | Rougher |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Value / Rent | No |
| Veteran | 30 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Baltimore-County, Maryland
Head, age 41
Baltimore-County, Maryland · implied b. ~1899 — 10 household members
| Surname | Cook |
| Given Name | Walter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Unincorporated place: Fairlawn, Dundalk, St. Helena (part) |
| 1935 Residence (County) | Baltimore |
| Occupation | ruffler |
| Industry | hot mill |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 2106 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Walter Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Walter Cook
Head · 1940 · age 41 · b. ~1899 · 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-County, Maryland
Open full size
1940 US Federal Census — Baltimore-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01506-00087)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank E. Hruz | 20 | brother | Brakeman | Maryland |
| 2 | Julius Hodges | 60 | Head | Janitor | Maryland |
| 3 | Elizabeth M. Hodges | 54 | wife | — | Maryland |
| 4 | William H. Hodges | 21 | son | Odd Jobs | Maryland |
| 5 | John P. Schroeder | 38 | Head | Carpenter | Maryland |
| 6 | Anna B. Schroeder | 35 | wife | — | Maryland |
| 7 | Martha A. Schroeder | 9 | daughter | — | Maryland |
| 8 | John P. Jr. Schroeder | 7 | son | — | Maryland |
| 9 | Marie E. Schroeder | 4 | daughter | — | Maryland |
| 10 | Ronald W. Schroeder | 2 | son | — | Maryland |
| 11 | Charles H. Neimeyer | 43 | Head | Shipper | Maryland |
| 12 | Martha V. Neimeyer | 37 | wife | Machine Operator | Maryland |
| 13 | Margaret M. Neimeyer | 18 | daughter | New Worker | Maryland |
| 14 | Charles J. Neimeyer | 16 | son | — | Maryland |
| 15 | George F. Neimeyer | 7 | son | — | Maryland |
| 16 | Walter Cook THIS PERSON | 41 | Head | Ruffler | Pennsylvania |
| 17 | Mary E. Cook | 31 | wife | — | Pennsylvania |
| 18 | Frank E. Cook | 13 | son | — | Maryland |
| 19 | Lottie S. Cook | 11 | daughter | — | Maryland |
| 20 | Stanley W. Cook | 10 | son | — | Maryland |
| 21 | Edwina D. Cook | 8 | daughter | — | Maryland |
| 22 | Walter J. Cook | 7 | son | — | Maryland |
| 23 | Cecelia M. Cook | 6 | daughter | — | Maryland |
| 24 | Marcella F. Cook | 5 | daughter | — | Maryland |
| 25 | Helen M. Cook | 2 | daughter | — | Maryland |
| 26 | James E. Barrett | 55 | Head | Road Builder | Virginia |
| 27 | Alva R. Barrett | 53 | wife | — | Maryland |
| 28 | Michael Smolak | 44 | Head | Machine Operator | Slovakia |
| 29 | Anna Smolak | 46 | wife | — | Slovakia |
| 30 | Stephen Smolak | 18 | son | New Worker | Pennsylvania |
| 31 | George Smolak | 15 | son | — | Ohio |
| 32 | Anna Smolak | 12 | daughter | — | Maryland |
| 33 | Joakin B. Guerero | 24 | Head | Shear Operator | Maryland |
| 34 | Dorothy G. Guerero | 23 | wife | — | Maryland |
| 35 | Mary H. Guerero | 1 | daughter | — | Maryland |
| 36 | Joakin B. Jr. Guerero | 0 | son | — | Maryland |
| 37 | John Wieczumirski | 49 | Head | Delivery Man | Poland |
| 38 | Sophia Wieczumirski | 44 | wife | — | Poland |
| 39 | Edward W. Kiselewski | 22 | son-in-law | Laborer | Maryland |
| 40 | Marie E. Kiselewski | 23 | daughter | Tin Assorter | 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)