MK
Mary Kerr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Grays-Harbor-County, Washington
Our Model Tree links this Mary Kerr across the 1930 and 1940 US Censuses in Grays-Harbor-County, Washington (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 4-person household.
Age 17
b. ~1923
Female
Daughter
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Grays-Harbor-County, Washington |
| Surname | Kerr |
| Given Name | Mary D |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Montesano city |
| 1935 Residence (County) | Grays Harbor |
| Additional Details | |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Montesano City |
| Est. Birth Year | ~1923 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Matthew Kerr | Head | — | 53 | ~1887 |
| Mary Kerr | Daughter | — | 17 | ~1923 |
| Ella Kerr | Spouse | — | 55 | ~1885 |
| Eileen Kerr | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Grays Harbor, …
Daughter, age 6
Grays Harbor, Washington · implied b. ~1924 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kerr |
| Given Name | Marjorie |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | The Netherlands |
| Mother's Birthplace | The Netherlands |
| Occupation | none |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Grays-Harbor-County, Washington
Daughter, age 17
Grays-Harbor-County, Washington · implied b. ~1923 — 4 household members
| Surname | Kerr |
| Given Name | Mary D |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Montesano city |
| 1935 Residence (County) | Grays Harbor |
| Highest Grade | H 3 |
| 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 Kerr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kerr
Daughter · 1940 · age 17 · b. ~1923 · Washington
★ You are viewing this record
Sibling
Eileen Kerr
Sibling · 1940 · age 15
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 — Grays-Harbor-County, Washington
Open full size
1940 US Federal Census — Grays-Harbor-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04341-00531)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Letitia Hubble | 80 | Head | — | Northern Ireland |
| 2 | Lester A Mccracken | 45 | Head | Chiropractor | Oregon |
| 3 | V. Faye Mccracken | 42 | Wife | Dressmaker | Missouri |
| 4 | Beverly Mccracken | 13 | Daughter | — | Oregon |
| 5 | Alfred J Hunter | 36 | Head | Fireman | Washington |
| 6 | Linnea K Hunter | 33 | Wife | — | Washington |
| 7 | Marilyn Ann Hunter | 5 | Daughter | — | Washington |
| 8 | Carolyn Marie Hunter | 3 | Daughter | — | Washington |
| 9 | Edward Russell | 54 | Head | Baker | Canada English |
| 10 | Frank H Jackson | 78 | Head | Proprietor | Indiana |
| 11 | Bella Jackson | 80 | Wife | — | Iowa |
| 12 | Harry Richter | 53 | Head | Shingle Packer | Michigan |
| 13 | Olive E. Richter | 35 | Wife | — | Washington |
| 14 | Vivian P Dorning | 17 | Daughter | Housework | Washington |
| 15 | Dale Dorning | 15 | Step-son | — | California |
| 16 | L. Earl Mayem | 52 | Brother-in-law | Locomotive Engineer | Iowa |
| 17 | Vernon Leonard | 25 | Lodger | Sign Painter | Washington |
| 18 | B. Patrick Hayden | 53 | Head | Inspector | Missouri |
| 19 | Celeste J Hayden | 52 | Wife | — | Missouri |
| 20 | E Joyce Hayden | 16 | Daughter | — | Washington |
| 21 | Celeste A Hayden | 18 | Daughter | N.Y.A. | Washington |
| 22 | B. Patrick Jr Hayden | 15 | Son | — | Washington |
| 23 | Helen A Hayden | 13 | Daughter | — | Washington |
| 24 | Bernadette Hayden | 10 | Daughter | — | Washington |
| 25 | R. F. Wheeler | 37 | Head | Assessor | Washington |
| 26 | Eunice Wheeler | 35 | Wife | — | Minnesota |
| 27 | Eldridge J Wheeler | 6 | Son | — | Washington |
| 28 | Imogene M. Wheeler | 4 | Daughter | — | Washington |
| 29 | Sadie Wheeler | 72 | Mother | — | Nebraska |
| 30 | — | None | — | — | — |
| 31 | Lucy A Church | 67 | Head | — | Michigan |
| 32 | Matthew M. Kerr | 53 | Head | Carpenter | Scotland |
| 33 | Ella J. Kerr | 55 | Wife | Sorter | Canada English |
| 34 | Mary D Kerr THIS PERSON | 17 | Daughter | — | Washington |
| 35 | Eileen C Kerr | 15 | Daughter | — | Washington |
| 36 | Aubrey M. Griffin | 28 | Head | Mechanic | Washington |
| 37 | Sophia Griffin | 23 | Wife | — | Washington |
| 38 | Ray Gordon Griffin | 1 | Son | — | Washington |
| 39 | Gaston Mock | 57 | Head | Proprietor | Switzerland |
| 40 | Aleta Belle Mock | 56 | Wife | — | Washington |
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)