MC
Mary Crawford — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Mary Crawford across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1903), then head of a 5-person household.
Age 37
b. ~1903
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Crawford |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Danvers town |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Packer |
| Industry | Baby shoe factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 576 |
| Highest Grade | C-1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Packer |
| Township / Ward | Danvers Town |
| Est. Birth Year | ~1903 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Anastasia Crawford | Daughter | — | 30 | ~1910 |
| Mary Crawford | Daughter | — | 37 | ~1903 |
| John Crawford | Head | — | 67 | ~1873 |
| Bennett Crawford | Son | — | 21 | ~1919 |
| Josephine Crawford | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Essex, Massachusetts
Daughter, age 16
Essex, Massachusetts · implied b. ~1904 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crawford |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Daughter, age 27
Essex, Massachusetts · implied b. ~1903 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crawford |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Massachusetts |
| Occupation | Worker |
| Industry | Shoe |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Daughter, age 37
Essex-County, Massachusetts · implied b. ~1903 — 5 household members
| Surname | Crawford |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Danvers town |
| 1935 Residence (County) | Essex |
| Occupation | Packer |
| Industry | Baby shoe factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 576 |
| Highest Grade | C-1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Mary Crawford across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Crawford (~0.92 confidence) and father John Crawford (~0.92 confidence) and mother Gertrude Crawford (~0.92 confidence) and mother Josephine Crawford (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Crawford
b. ~1873
Source father
● Household
· direct · ~0.92
Father
John Crawford
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Gertrude Crawford
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Josephine Crawford
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Crawford
Daughter · 1940 · age 37 · b. ~1903 · Massachusetts
★ You are viewing this record
Sibling
Anastasia Crawford
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bennett 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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01579-00128)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John A. Wells | 17 | Son | — | Massachusetts |
| 2 | Mary E. Wells | 10 | Daughter | — | Massachusetts |
| 3 | William W. Trotter | 46 | Head | Wholesaler | Massachusetts |
| 4 | Viola A. Trotter | 52 | Wife | — | Massachusetts |
| 5 | Arthur E. Breen | 34 | Head | T. Glazer | Massachusetts |
| 6 | Isabel A. Breen | 36 | Wife | — | Massachusetts |
| 7 | William F. Breen | 15 | Son | — | Massachusetts |
| 8 | Arthur E. Breen | 11 | Son | — | Massachusetts |
| 9 | Wilfred Bramham | 62 | Head | Piano Tuner And Repairer | England |
| 10 | Ada J. Bramham | 65 | Wife | — | England |
| 11 | Donald G. Cloudman | 28 | Head | General Laborer | Massachusetts |
| 12 | Mildred Cloudman | 34 | Wife | — | Massachusetts |
| 13 | Urban W. Brouss | 64 | Head | Contractor Painter | Massachusetts |
| 14 | Edith M. Brouss | 64 | Wife | — | Massachusetts |
| 15 | Mark A. Winkley | 27 | Head | Glass Grinder | New Hampshire |
| 16 | May T. Winkley | 25 | Wife | — | Massachusetts |
| 17 | M. Dwight Winkley | 0 | Son | 0 | New Hampshire |
| 18 | John J. Kelly | 60 | Head | General Laborer | Irish Free State |
| 19 | Anne C. Kelly | 66 | Wife | — | Irish Free State |
| 20 | John F. Kelly | 25 | Son | Foundry Worker | Massachusetts |
| 21 | Alice F. Kelly | 26 | Daughter | Saleslady | Massachusetts |
| 22 | John J. Crawford | 67 | Head | Bus Driver | Irish Free State |
| 23 | Josephine Crawford | 61 | Wife | — | Massachusetts |
| 24 | Mary J. Crawford THIS PERSON | 37 | Daughter | Packer | Massachusetts |
| 25 | Anastasia Crawford | 30 | Daughter | Laster | Massachusetts |
| 26 | Bennett Crawford | 21 | Son | — | Massachusetts |
| 27 | George L. Durgin | 40 | Head | Substitute Letter Carrier | Massachusetts |
| 28 | Anna N. Durgin | 35 | Wife | — | Massachusetts |
| 29 | Gloria J. Durgin | 13 | Daughter | — | Massachusetts |
| 30 | George L. Jr. Durgin | 6 | Son | — | Massachusetts |
| 31 | Nathaniel W. Durgin | 5 | Son | — | Massachusetts |
| 32 | Lewis S. Crosby | 46 | Head | Teacher And Principal | Maine |
| 33 | Dorothy M. Crosby | 34 | Wife | — | Massachusetts |
| 34 | Sally Ann Crosby | 6 | Daughter | — | Massachusetts |
| 35 | George F. Brown | 43 | Head | Carpenter | Massachusetts |
| 36 | Justine O. Brown | 44 | Wife | — | Massachusetts |
| 37 | Arthur G. Brown | 69 | Father | — | Maine |
| 38 | John J. Leonard | 64 | Head | Cutter | Irish Free State |
| 39 | Elizabeth F. Leonard | 65 | Wife | — | Massachusetts |
| 40 | Frank C. Leonard | 39 | Son | Mail Order Clerk | Massachusetts |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)