MC
Mary Cramer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cowlitz-County, Washington
Our Model Tree links this Mary Cramer across the 1930 and 1940 US Censuses in Cowlitz-County, Washington (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 5-person household.
Age 19
b. ~1921
Female
Daughter
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cowlitz-County, Washington |
| Surname | Cramer |
| Given Name | Mary (Ab) |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Kalama town |
| 1935 Residence (County) | Cowlitz |
| Additional Details | |
| Highest Grade | C-2 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Kalama Town |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Cramer | Daughter | — | 19 | ~1921 |
| Fred Cramer | Head | — | 61 | ~1879 |
| Ida Cramer | Spouse | — | 49 | ~1891 |
| Patricia Cramer | Daughter | — | 18 | ~1922 |
| Robert Cramer | Son | — | 13 | ~1927 |
Census Appearances
1930
Cowlitz, Washington
Daughter, age 9
Cowlitz, Washington · implied b. ~1921 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cramer |
| Given Name | Mary Virginia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Cowlitz-County, Washington
Daughter, age 19
Cowlitz-County, Washington · implied b. ~1921 — 5 household members
| Surname | Cramer |
| Given Name | Mary (Ab) |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Kalama town |
| 1935 Residence (County) | Cowlitz |
| Highest Grade | C-2 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Cramer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cramer
Daughter · 1940 · age 19 · b. ~1921 · Washington
★ You are viewing this record
Sibling
Robert Cramer
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Cramer
Sibling · 1940 · age 18
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 — Cowlitz-County, Washington
Open full size
1940 US Federal Census — Cowlitz-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04337-00370)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Jr. Desperati | 28 | Head | Laborer | Washington |
| 2 | James Desperati | 29 | Brother | Laborer | Washington |
| 3 | Andrew Begue | 45 | Lodger | — | New York |
| 4 | Clinton Creveling | 45 | Head | — | Iowa |
| 5 | Ella E. Sigler | 49 | Housekeeper | Housekeeper | Iowa |
| 6 | Niram Sigler | 16 | Housekeeper's son | — | Iowa |
| 7 | Fred Pierce | 68 | Head | Jeweler | New York |
| 8 | Lewis Hanshaw | 30 | Head | Laborer | Washington |
| 9 | Alice Hanshaw | 31 | Wife | — | Washington |
| 10 | Beverly Hanshaw | 8 | Daughter | — | Washington |
| 11 | Eugene Hanshaw | 23 | Brother | Laborer | Washington |
| 12 | Lena Bernard | 39 | Head | — | Washington |
| 13 | Francis Cooper | 37 | Head | Truck Driver | Washington |
| 14 | Stella Cooper | 39 | Wife | — | Washington |
| 15 | Thomas Cooper | 14 | Son | — | Washington |
| 16 | Warren Morgan | 36 | Head | Edgerman | Washington |
| 17 | Eleanor Morgan | 32 | Wife | — | Washington |
| 18 | Joanne Morgan | 4 | Daughter | — | Washington |
| 19 | Bruce Johns | 27 | Head | Green Chain | Washington |
| 20 | Delores Johns | 24 | Wife | — | Washington |
| 21 | Michael Johns | 0 | Son | — | Washington |
| 22 | Fred Cramer | 61 | Head | Civil Engineer | Illinois |
| 23 | Ida Cramer | 49 | Wife | — | Kansas |
| 24 | Mary (Ab) Cramer THIS PERSON | 19 | Daughter | — | Washington |
| 25 | Patricia Cramer | 18 | Daughter | — | Washington |
| 26 | Robert Cramer | 13 | Son | — | Washington |
| 27 | Wilbur Anderson | 22 | Head | New Worker | Oregon |
| 28 | Robert E. Jones | 47 | Head | Green Chain | Colorado |
| 29 | Beverly Jones | 34 | Wife | — | Oregon |
| 30 | Leonard Jones | 8 | Son | — | Oregon |
| 31 | La Vaughn Jones | 6 | Daughter | — | Oregon |
| 32 | Clarence Potter | 47 | Head | Sawyer | Nebraska |
| 33 | Vera Potter | 30 | Wife | — | Colorado |
| 34 | Billie Potter | 12 | Son | — | Washington |
| 35 | Betty Jane Potter | 7 | Daughter | — | Washington |
| 36 | Patricia Potter | 3 | Daughter | — | Washington |
| 37 | William L. Dursen | 4 | Step-son | — | Colorado |
| 38 | Joseph Tomsick | 45 | Head | Green Chain | Germany |
| 39 | Jennie Tomsick | 46 | Wife | — | Sweden |
| 40 | Mary Alice Tomsick | 19 | Daughter | Waitress | Oregon |
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)