MC
Margaret Crawford — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Margaret Crawford across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 9-person household.
Age 19
b. ~1921
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Crawford |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Home |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1921 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Virginia Crawford | Daughter | — | 10 | ~1930 |
| Alice Crawford | Daughter | — | 17 | ~1923 |
| Albert Crawford | Head | — | 46 | ~1894 |
| Robert Crawford | Son | — | 20 | ~1920 |
| Dorothy Crawford | Daughter | — | 21 | ~1919 |
| Margaret Crawford | Spouse | — | 42 | ~1898 |
| Thomas Crawford | Son | — | 13 | ~1927 |
| Margaret Crawford | Daughter | — | 19 | ~1921 |
| Patricia Crawford | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 9
Allegheny, Pennsylvania · implied b. ~1921 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crawford |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 19
Allegheny-County, Pennsylvania · implied b. ~1921 — 9 household members
| Surname | Crawford |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Home |
| 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 Crawford across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Crawford
Daughter · 1940 · age 19 · b. ~1921 · Pennsylvania
★ You are viewing this record
Sibling
Thomas Crawford
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Crawford
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Crawford
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Crawford
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Crawford
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Crawford
Sibling · 1940 · age 21
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 — 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-t0627-03677-00053)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret Connolly | 80 | Mother | — | Ireland |
| 42 | Mary Connolly | 58 | Sister | Wrapper | Pennsylvania |
| 43 | Margaret Connolly | 40 | Sister | Clerk | Pennsylvania |
| 44 | Anna Muller | 45 | Head | — | Pennsylvania |
| 45 | Marie Baumann | 23 | Head | Compositor | Pennsylvania |
| 46 | Claire Baumann | 24 | Wife | — | Pennsylvania |
| 47 | William Schad | 63 | Head | — | Pennsylvania |
| 48 | Katherine Schad | 57 | Wife | — | Ireland |
| 49 | Albert Crawford | 46 | Head | Fireman | Pennsylvania |
| 50 | Margaret Crawford | 42 | Wife | — | Pennsylvania |
| 51 | Dorothy Crawford | 21 | Daughter | Wrapper | Pennsylvania |
| 52 | Robert Crawford | 20 | Son | Clerk | Pennsylvania |
| 53 | Margaret Crawford THIS PERSON | 19 | Daughter | — | Pennsylvania |
| 54 | Alice Crawford | 17 | Daughter | — | Pennsylvania |
| 55 | Thomas Crawford | 13 | Son | — | Pennsylvania |
| 56 | Virginia Crawford | 10 | Daughter | — | Pennsylvania |
| 57 | Patricia Crawford | 6 | Daughter | — | Pennsylvania |
| 58 | Frank D. Buckley | 72 | Head | — | Pennsylvania |
| 59 | Anna M. Buckley | 73 | Wife | — | Pennsylvania |
| 60 | Francis J. Buckley | 40 | Son | — | Pennsylvania |
| 61 | Alice M. Buckley | 38 | Daughter-in-law | — | Pennsylvania |
| 62 | Catherine O'Donnell | 76 | Sister-in-law | Clerical | Pennsylvania |
| 63 | George E. Rodgers | 76 | Head | — | Pennsylvania |
| 64 | Blanche Rodgers | 52 | Daughter | — | Pennsylvania |
| 65 | Walter J. Mcdreeny | 43 | Son-in-law | Insurance Broker | Pennsylvania |
| 66 | Clara G. Mcdreeny | 40 | Daughter | — | Pennsylvania |
| 67 | Jane Claire Mcdreeny | 11 | Daughter | — | Pennsylvania |
| 68 | Walter J. Jr. Mcdreeny | 8 | Son | — | Pennsylvania |
| 69 | Maureen Anne Mcdreeny | 7 | Daughter | — | Pennsylvania |
| 70 | George J. Mcclory | 37 | Head | Lawman | Illinois |
| 71 | Victoria R. Mcclory | 36 | Wife | — | Pennsylvania |
| 72 | James J. Mcclory | 9 | Son | — | Pennsylvania |
| 73 | Victoria C. Mcclory | 5 | Daughter | — | Pennsylvania |
| 74 | George Mcclory | 1 | Son | — | Pennsylvania |
| 75 | John H. Mcelroy | 64 | Head | Watchman | Pennsylvania |
| 76 | Clara M. Mcelroy | 65 | Wife | — | Illinois |
| 77 | Ella B. Loussel | 65 | Head | — | Pennsylvania |
| 78 | Edith H. Campbell | 54 | Sister | — | Pennsylvania |
| 79 | Henry P. Murphy | 57 | Head | Plumber | Minnesota |
| 80 | Harriett C. Murphy | 51 | 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)