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Margaret Arnold — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Margaret Arnold across the 1910, 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 2-person household.
Age 77
b. ~1863
Female
Head
Born: Pennsylvania
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Arnold |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 77 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1863 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Arnold | Head | — | 77 | ~1863 |
| William Arnold | Son | — | 39 | ~1901 |
Census Appearances
1910
Allegheny, Pennsylvania
Spouse, age 47
Allegheny, Pennsylvania · implied b. ~1863 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Years Married | 26 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Spouse, age 56
Allegheny, Pennsylvania · implied b. ~1864 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Margaret M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Other, age 66
Allegheny, Pennsylvania · implied b. ~1864 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Margaret M |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 21 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 77
Allegheny-County, Pennsylvania · implied b. ~1863 — 2 household members
| Surname | Arnold |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 77 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| 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 Margaret Arnold across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Arnold
Head · 1940 · age 77 · b. ~1863 · 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03670-00500)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edward Hobbs | 40 | Head | Common Laborer | Pennsylvania |
| 42 | Frances Hobbs | 37 | Wife | — | Pennsylvania |
| 43 | Edward Hobbs | 15 | Son | — | Pennsylvania |
| 44 | Kenneth Hobbs | 5 | Son | — | Pennsylvania |
| 45 | Robert Barker | 57 | Head | Painter | Pennsylvania |
| 46 | Sussetta Barker | 52 | Wife | — | Pennsylvania |
| 47 | Albert Barker | 15 | Son | — | Pennsylvania |
| 48 | Edward De Mark | 23 | Head | Common Laborer | Pennsylvania |
| 49 | Lucy De Mark | 21 | Wife | — | Pennsylvania |
| 50 | Ronald De Mark | 2 | Son | — | Pennsylvania |
| 51 | Paul De Mark | 0 | Son | — | Pennsylvania |
| 52 | Raymond George | 30 | Head | Plastering | Pennsylvania |
| 53 | Loultha George | 25 | Wife | — | Pennsylvania |
| 54 | Mary Smith | 41 | Head | Sewing | Pennsylvania |
| 55 | Earl Smith | 22 | Son | Common Laborer | Pennsylvania |
| 56 | Eugene Smith | 14 | Son | — | Pennsylvania |
| 57 | Margaret Arnold THIS PERSON | 77 | Head | — | Pennsylvania |
| 58 | William Arnold | 39 | Son | Common Laborer | Pennsylvania |
| 59 | James Marshall | 26 | Head | Laborer | Pennsylvania |
| 60 | Donna O. Marshall | 24 | Wife | — | Pennsylvania |
| 61 | Thomas Marshall | 1 | Son | — | Pennsylvania |
| 62 | Clara Scheib | 55 | Head | — | Pennsylvania |
| 63 | Joseph Scheib | 25 | Son | Furnace Helper | Pennsylvania |
| 64 | Adaline Scheib | 21 | Daughter | Housework | Pennsylvania |
| 65 | Ida Mcalester | 38 | Head | Office Work | Pennsylvania |
| 66 | Bette Mcalester | 9 | Daughter | — | Pennsylvania |
| 67 | William Mcalester | 8 | Son | — | Pennsylvania |
| 68 | (Line Ends Block 42 And Begins Block 43) | None | — | — | — |
| 69 | George Mccormick | 26 | Head | Carpenter Helper | Pennsylvania |
| 70 | Martha Mccormick | 20 | Wife | — | Pennsylvania |
| 71 | Nancy Jean Mccormick | 6 | Daughter | — | Pennsylvania |
| 72 | Sally Lee Mccormick | 1 | Daughter | — | Pennsylvania |
| 73 | David F. Barker | 67 | Head | Common Laborer | Pennsylvania |
| 74 | Maria Barker | 65 | Wife | — | England |
| 75 | Elmer Strittmatter | 28 | Head | Common Laborer | Pennsylvania |
| 76 | Emma Strittmatter | 23 | Wife | — | Pennsylvania |
| 77 | John Strittmatter | 3 | Son | — | Pennsylvania |
| 78 | Ruth Ann Strittmatter | 0 | Daughter | — | Pennsylvania |
| 79 | Frank Maurer | 73 | Head | — | Pennsylvania |
| 80 | Catherine Maurer | 72 | Wife | — | 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)