MC
Mary Crawford — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Iowa
Our Model Tree links this Mary Crawford across the 1920, 1930 and 1940 US Censuses in Washington-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1884), then head of a 7-person household.
Age 56
b. ~1884
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Iowa |
| Surname | Crawford |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Dutch Creek |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Industry | H |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Dutch Creek |
| Est. Birth Year | ~1884 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Marjorie Crawford | Daughter | — | 12 | ~1928 |
| Ellen Crawford | Daughter | — | 18 | ~1922 |
| George Crawford | Head | — | 61 | ~1879 |
| Walter Crawford | Son | — | 27 | ~1913 |
| David Crawford | Son | — | 29 | ~1911 |
| George Crawford | Son | — | 23 | ~1917 |
| Mary Crawford | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Washington, Iowa
Spouse, age 35
Washington, Iowa · implied b. ~1885 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crawford |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Washington, Iowa
Spouse, age 46
Washington, Iowa · implied b. ~1884 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crawford |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 21 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Washington-County, Iowa
Spouse, age 56
Washington-County, Iowa · implied b. ~1884 — 7 household members
| Surname | Crawford |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Dutch Creek |
| 1935 Residence (County) | Washington |
| Industry | H |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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.
Show:
This person
Anchor record
Mary Crawford
Spouse · 1940 · age 56 · b. ~1884 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Washington-County, Iowa
Open full size
1940 US Federal Census — Washington-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01211-00117)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William J. Augustine | 72 | Head | Farmer | Ohio |
| 42 | Rosa Augustine | 66 | Wife | — | Ohio |
| 43 | Lydia Lutz | 87 | Head | — | Ohio |
| 44 | Laurence E. Motlet | 49 | Head | Farmer | Iowa |
| 45 | Mary Motlet | 48 | Wife | — | Iowa |
| 46 | Catherine Motlet | 17 | Daughter | — | Iowa |
| 47 | Delores Motlet | 15 | Daughter | — | Iowa |
| 48 | Richard Motlet | 13 | Son | — | Iowa |
| 49 | Jeneta Motlet | 11 | Daughter | — | Iowa |
| 50 | Duane Motlet | 9 | Son | — | Iowa |
| 51 | David D. Temple | 58 | Head | Farmer | Iowa |
| 52 | Ross D. Halferty | 39 | Head | Farmer | Iowa |
| 53 | Alice Halferty | 32 | Wife | — | Iowa |
| 54 | Joan Halferty | 12 | Daughter | — | Iowa |
| 55 | Robert Halferty | 10 | Son | — | Iowa |
| 56 | Joseph Halferty | 9 | Son | — | Iowa |
| 57 | Maxine Halferty | 7 | Daughter | — | Iowa |
| 58 | Rex Halferty | 3 | Son | — | Iowa |
| 59 | Kathleen Halferty | 1 | Daughter | — | Iowa |
| 60 | John S. Redlinger | 61 | Head | Farmer | Iowa |
| 61 | Elizabeth Redlinger | 60 | Wife | — | Iowa |
| 62 | Rosemond Redlinger | 30 | Son | Painter | South Dakota |
| 63 | Richard Redlinger | 26 | Son | Farmer | Iowa |
| 64 | Virginia Redlinger | 21 | Daughter | — | Iowa |
| 65 | Daryl Redlinger | 19 | Son | Farmer | Iowa |
| 66 | Genevieve Redlinger | 26 | Daughter-in-law | — | Iowa |
| 67 | Eugene Redlinger | 0 | Grandson | — | Iowa |
| 68 | Carl D. Mayer | 51 | Head | Farmer | Iowa |
| 69 | Elsie Mayer | 52 | Wife | — | Iowa |
| 70 | George L. Crawford | 61 | Head | Farmer | Iowa |
| 71 | Mary Crawford THIS PERSON | 56 | Wife | — | Iowa |
| 72 | David Crawford | 29 | Son | — | Iowa |
| 73 | Walter Crawford | 27 | Son | — | Iowa |
| 74 | Ellen Crawford | 18 | Daughter | — | Iowa |
| 75 | Marjorie Crawford | 12 | Daughter | — | Iowa |
| 76 | George Jr. Crawford | 23 | Son | — | Iowa |
| 77 | G. Howard Mayer | 37 | Head | Farmer | Iowa |
| 78 | Cecille Mayer | 38 | Wife | — | Iowa |
| 79 | Theodore Mayer | 15 | Son | — | Iowa |
| 80 | Lester Mayer | 13 | Son | — | Iowa |
Related Census Records
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)