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Robert Zimmerman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Robert Zimmerman across the 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 9-person household.
Age 14
b. ~1926
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Zimmerman |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Upper Darby Township |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Occupation | 0 |
| Class of Worker | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | 0 |
| Township / Ward | Upper Darby Township |
| Est. Birth Year | ~1926 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Luther Zimmerman | Son | — | 17 | ~1923 |
| Robert Zimmerman | Son | — | 14 | ~1926 |
| Florence Zimmerman | Spouse | — | 43 | ~1897 |
| Arlene Mcveigh | Other | — | ~1940 | |
| Albert Zimmerman | Son | — | 13 | ~1927 |
| Florence Mcveigh | Daughter | — | 20 | ~1920 |
| David Zimmerman | Son | — | 9 | ~1931 |
| Eleanore Zimmerman | Daughter | — | 7 | ~1933 |
| William Zimmerman | Head | — | 48 | ~1892 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age 4
Philadelphia, Pennsylvania · implied b. ~1926 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Delaware-County, Pennsylvania
Son, age 14
Delaware-County, Pennsylvania · implied b. ~1926 — 9 household members
| Surname | Zimmerman |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Upper Darby Township |
| 1935 Residence (County) | Delaware |
| Occupation | 0 |
| Class of Worker | 0 |
| Highest Grade | 8 |
| 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 Robert Zimmerman across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Zimmerman
Son · 1940 · age 14 · b. ~1926 · Pennsylvania
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Sibling
Eleanore Zimmerman
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Luther Zimmerman
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Zimmerman
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Zimmerman
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Mcveigh
Sibling · 1940 · age 20
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 — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03498-00550)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marion Marcen | 15 | Daughter | 0 | Pennsylvania |
| 42 | Dorothy Marcen | 14 | Daughter | 0 | Pennsylvania |
| 43 | Joyce Marcen | 11 | Daughter | 0 | Pennsylvania |
| 44 | Janice Marcen | 11 | Daughter | 0 | Pennsylvania |
| 45 | Shirley Marcen | 9 | Daughter | 0 | Pennsylvania |
| 46 | Ronald Marcen | 8 | Son | 0 | Pennsylvania |
| 47 | William Zimmerman | 48 | Head | Meat Cutter | Pennsylvania |
| 48 | Florence Zimmerman | 43 | Wife | 0 | Pennsylvania |
| 49 | Luther Zimmerman | 17 | Son | Meat Cutter | Pennsylvania |
| 50 | Robert Zimmerman THIS PERSON | 14 | Son | 0 | Pennsylvania |
| 51 | Albert Zimmerman | 13 | Son | 0 | Pennsylvania |
| 52 | David Zimmerman | 9 | Son | 0 | Pennsylvania |
| 53 | Eleanore Zimmerman | 7 | Daughter | 0 | Pennsylvania |
| 54 | Florence Mcveigh | 20 | Daughter | Shirt Presser | Pennsylvania |
| 55 | Arlene Mcveigh | 0 | Granddaughter | 0 | Pennsylvania |
| 56 | Michael J. Malia | 42 | Head | Machinist | Pennsylvania |
| 57 | Elizabeth Malia | 38 | Wife | 0 | Pennsylvania |
| 58 | Robert Wilson | 8 | Boarder | 0 | Pennsylvania |
| 59 | George Schwindt | 21 | Brother-in-law | Waiter | Pennsylvania |
| 60 | William Schwindt | 25 | Brother-in-law | Driver | Pennsylvania |
| 61 | Solomon Schwindt | 67 | Father-in-law | 0 | Pennsylvania |
| 62 | Anna Wilson | 27 | Sister-in-law | Companion & Practical Nurse | Pennsylvania |
| 63 | George Grawl | 58 | Head | 0 | Pennsylvania |
| 64 | Lydia Grawl | 52 | Wife | Domestic | Pennsylvania |
| 65 | Lawrence Grawl | 34 | Son | Carpenter | Pennsylvania |
| 66 | Marian Grawl | 34 | In-law | File Clerk | Pennsylvania |
| 67 | Edward Blankley | 40 | Head | Handyman | Pennsylvania |
| 68 | Helen Blankley | 23 | Wife | 0 | Pennsylvania |
| 69 | Edward James Blankley | 3 | Son | 0 | Pennsylvania |
| 70 | Francis Charles Blankley | 2 | Son | 0 | Pennsylvania |
| 71 | Harvey R. Sines | 32 | Head | Wood Assembler | Pennsylvania |
| 72 | Dorothy Sines | 28 | Wife | 0 | Pennsylvania |
| 73 | Harvey Sines | 10 | Son | 0 | Pennsylvania |
| 74 | William Sines | 9 | Son | 0 | Pennsylvania |
| 75 | Dorothy Sines | 6 | Daughter | 0 | Pennsylvania |
| 76 | Ruth Sines | 3 | Daughter | 0 | Pennsylvania |
| 77 | Robert Makris | 29 | Head | Spinner | Pennsylvania |
| 78 | Eugenia Makris | 26 | Wife | Twister | Pennsylvania |
| 79 | Robert Makris | 5 | Son | 0 | Pennsylvania |
| 80 | Norma Makris | 4 | Daughter | 0 | Pennsylvania |
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)