JU
John Underwood — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this John Underwood across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 8-person household.
Age 54
b. ~1886
Male
Head
Born: Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Underwood |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Penn |
| Additional Details | |
| Occupation | Office Bldg. |
| Industry | PW |
| Highest Grade | No 7 |
| 1935 Residence | 3 |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | Office Bldg. |
| Township / Ward | Phila |
| Est. Birth Year | ~1886 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Pannek | Other | — | 62 | ~1878 |
| Mary Underwood | Spouse | — | 47 | ~1893 |
| Frances Underwood | Daughter | — | 21 | ~1919 |
| Bernard Underwood | Son | — | 20 | ~1920 |
| Elizabeth Underwood | Daughter | — | 8 | ~1932 |
| John Underwood | Head | — | 54 | ~1886 |
| Thomas Underwood | Son | — | 14 | ~1926 |
| John Underwood | Son | — | 10 | ~1930 |
Census Appearances
1920
Philadelphia, Pennsylvania
Head, age 33
Philadelphia, Pennsylvania · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Virginia |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Operator |
| Industry | Screw works |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
Philadelphia, Pennsylvania
Head, age 44
Philadelphia, Pennsylvania · implied b. ~1886 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | John B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 31 |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Occupation | Machinist |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 27 |
| Radio Set | R |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Philadelphia-County, Pennsylvania
Head, age 54
Philadelphia-County, Pennsylvania · implied b. ~1886 — 8 household members
| Surname | Underwood |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Penn |
| Occupation | Office Bldg. |
| Industry | PW |
| Highest Grade | No 7 |
| 1935 Residence | 3 |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 John Underwood across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Underwood
Head · 1940 · age 54 · b. ~1886 · Pennsylvania
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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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03742-00244)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen Olszewski | 18 | Sister | Puller | Penn |
| 42 | Josephine Olszewski | 43 | Mother | Cleaner | Austria |
| 43 | Frank Jr. Kohout | 50 | Head | Machinist | Penn |
| 44 | Carrie Kohout | 43 | Wife | — | Illinois |
| 45 | Helen Kohout | 25 | Daughter | Bookkeeper | Penn |
| 46 | Frank Iii Kohout | 9 | Son | — | Penn |
| 47 | Norma Kohout | 6 | Daughter | — | Penn |
| 48 | Frank Sr. Kohout | 81 | Father | — | Austria |
| 49 | Herbert A. Jones | 67 | Head | Salesman | England |
| 50 | Jane Jones | 65 | Wife | — | England |
| 51 | Arthur F. Jones | 40 | Son | Office Clerk | England |
| 52 | Maurice Heaton | 45 | Head | Mailman | Penn |
| 53 | Isable Heaton | 46 | Wife | — | Penn |
| 54 | Mary Heaton | 21 | Daughter | Marker | Penn |
| 55 | John Heaton | 17 | Son | New Worker | Penn |
| 56 | Marion Matuszewski | 30 | Head | Knitter | Penn |
| 57 | Rosann V. Matuszewski | 22 | Wife | — | Penn |
| 58 | Roseann Matuszewski | 2 | Daughter | — | Penn |
| 59 | Edward Matuszewski | 0 | Son | — | Penn |
| 60 | Jadwiga Wilusz | 65 | Aunt | — | Poland |
| 61 | Joseph Krusman | 45 | Head | Compounder | Penn |
| 62 | Irene Krusman | 45 | Wife | — | Penn |
| 63 | Gertrude Krusman | 19 | Daughter | Stenographer | Penn |
| 64 | Raymond Boeing | 28 | Head | Knitter | Penn |
| 65 | Frank Boeing | 24 | Son | Handyman | Penn |
| 66 | Philippine Boeing | 66 | Mother | — | Germany |
| 67 | John Underwood THIS PERSON | 54 | Head | Office Bldg. | Virginia |
| 68 | Mary E. Underwood | 47 | Wife | — | Penn |
| 69 | Frances Underwood | 21 | Daughter | Topper | Penn |
| 70 | Bernard Underwood | 20 | Son | Helper | Penn |
| 71 | Thomas Underwood | 14 | Son | — | Penn |
| 72 | John Underwood | 10 | Son | — | Penn |
| 73 | Elizabeth Underwood | 8 | Daughter | — | Penn |
| 74 | Mary Pannek | 62 | Mother in law | Cook | Austria |
| 75 | Chas. Haag | 63 | Head | Baker | Germany |
| 76 | Maria Haag | 62 | Wife | — | Germany |
| 77 | Chas E. Richard | 39 | Head | Shipper | Penn |
| 78 | Ruth M. Richard | 38 | Wife | — | Penn |
| 79 | Harry Geiger | 79 | Father in law | Hat Ironer | Penn |
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)